先C++版吧，我最先用的是C#,后来是Java，后来改用C++版的，因为现在一直在用C++，单链
表一直没写上去，因为我很少用，用的是双链表。
执行代码例子1：
int main()
{
_DList<_string> sl = { "123","a1","b4","1998","wc" };
_pcn(sl);
sl.Sort_Selection();
_pcn(sl);
}
输出：
执行代码例子2：
void test()
{
_DList<_string> sl = { "123","a1","b4","1998","wc" };
std::cout << "使用内存：" << _Memory::mem_used() << "\n";
sl.Sort_Selection();
std::cout << "使用内存：" << _Memory::mem_used() << "\n";
}
int main()
{
std::cout << "使用内存：" << _Memory::mem_used() << "\n";
test();
std::cout << "使用内存：" << _Memory::mem_used() << "\n";
}
1. C++版
_List.h
cpp
/*******************************************************************************************
文件名 ： list.h
作者 ： 李锋
功能 ： 链表
创建时间 ： 2016年07月31日
最后一次修改时间 : 2021年10月23日
/// 链表是一种用来存储数据集合的数据结构。链表具有如下属性
///（1）元素通过指针依次相连
///（2）最后一个元素的指针为空（null）。
///（3）在程序的执行过程中，链表的长度可以自由伸缩。
///（4）链表的长度可以要求的任意长度（除非系统内存耗尽）。
///（5）它不会浪费内存空间（但会需要额外的内存空间存储指针）。
记住： Virtual C++ Bug: 模板继承用到父类成员访问时，要用 this->
********************************************************************************************/
#ifndef __LIST_H_
#define __LIST_H_
#include "_Macro.h"
#include "_Memory.h"
#include "_ByteArray.h"
#include "_Pair.h"
_LF_BEGIN_
/// <summary>
/// 排序顺序
/// </summary>
enum class _SortOrder
{
s_Minmax = 0, //从小到大
s_Maxmin = 1, //从大到小
s_null = 2 //无排序顺序
};
/// <summary>
/// 单链表节点
/// </summary>
/// <typeparam name="T"></typeparam>
/// 创建时间 2021年10月23日 最后一次修改时间 : 2021年10月23日
template<class T>
class _SListNode
{
public:
/// <summary>
/// 节点数据
/// </summary>
T Data;
/// <summary>
/// 下一个节点
/// </summary>
_SListNode<T>* Next;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="aData"></param>
_SListNode(T aData)
{
Data = aData;
}
};
/// <summary>
/// C#语句：public class _DListNode<T>
/// </summary>
/// <typeparam name="T">默认数据</typeparam>
template<class T>
class _DListNode
{
public:
/// <summary>
/// 节点数据
/// </summary>
T Data;
/// <summary>
/// 前一个节点
/// </summary>
_DListNode<T>* Prev;
/// <summary>
/// 下一个节点
/// </summary>
_DListNode<T>* Next;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="aData">默认数据</param>
_DListNode(const T& aData)
{
Data = aData;
Prev = null;
Next = null;
}
_DListNode()
{
Prev = null;
Next = null;
Data = T();
}
};
/// <summary>
/// 单链表：
/// 通常我们说的链表指的是单链表（singly linked list）。单链表包括一组结点，每个结
/// 点有一个 next 指针域，用来存储指向（逻辑上）下一个元素对应结点的指针。最后一个结点的
/// next指针域的值为null，这预示着已经到达链表的尾部。
///
/// </summary>
/// <typeparam name="T"></typeparam>
template<class T>
class _SList : public _Object
{
private:
/// <summary>
/// 第一个结点
/// </summary>
_SListNode<T>* _First;
/// <summary>
/// 结点数
/// </summary>
int _Count;
public:
inline const int& Count() { return _Count; }
inline const _SListNode<T>* First() { return _First; }
};
//------------------------------------------LDIterator
//参考网址： https://blog.csdn.net/qq_28398301/article/details/106321525 C++用for遍历自定义类
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
template<class T>
class _DListNodeIterator
{
private:
_DListNode<T>* _pNode;
public:
/// <summary>
/// 构造函数，传值迭代器管理的值
/// </summary>
/// <param name="pNode"></param>
inline _DListNodeIterator(_DListNode<T>* pNode) { _pNode = pNode; }
/// <summary>
/// 比较实现
/// </summary>
/// <param name="that"></param>
/// <returns></returns>
bool operator != (const _DListNodeIterator& that) { return _pNode != that._pNode; }
/// <summary>
/// 自增实现
/// </summary>
/// <returns></returns>
inline _DListNodeIterator& operator ++ () { _pNode = _pNode->Next; return *this; }
/// <summary>
/// 解引用，取值
/// </summary>
/// <typeparam name="T"></typeparam>
T& operator * () { return _pNode->Data; }
//LDIterator(const LDIterator&) = delete;
//LDIterator& operator=(const LDIterator&) = delete;
//~LDIterator() = default;
};
/// <summary>
/// 双向链表, 数据 T 要求能够比较大小，否则编译会出错。
/// </summary>
/// <typeparam name="T"></typeparam>
template<class T>
class _DList : public _Object
{
protected:
_DListNode<T>* _First; //第一个节点
_DListNode<T>* _Last; //最后一个节点
int _Count; //节点个数
int _MaxBuffer; //双链表最大可以存储的元素个数
_SortOrder _so; //排序顺序
protected:
/// <summary>
/// 初台化数据
/// </summary>
/// <returns></returns>
inline void InitData()
{
_Count = 0; _First = null; _Last = null; _MaxBuffer = 100000;
_so = _SortOrder::s_null;
}
public: //---------------------------------------------------------------------------属性
__declspec(property(get = GetSortOrder, put = SetSortOrder) ) _SortOrder SortOrder;
const _SortOrder& GetSortOrder() const { return _so; }
virtual void SetSortOrder(const _SortOrder so) { _so = so; }
__declspec(property(get = GetCount)) const int Count;
inline int GetCount() const { return _Count; }
public:
//------------------------------------------------------------构造与析构
/// <summary>
/// 默认构造函数
/// </summary>
/// <returns></returns>
inline _DList()
{
InitData();
}
inline _DList(const _DList& dl)
{
//_cout << _t("inline _DList<T>::_DList(const _DList& dl)\n");
InitData();
_DListNode<T>* dn = dl.First();
while (dn != null)
{
Add(dn->Data);
dn = dn->Next;
}
}
inline _DList(const T& item)
{
InitData();
Add(item);
}
/// <summary>
/// 列表初始化 dList<int> idl = {1,2,3,4};
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="tList"></param>
inline _DList(std::initializer_list<T> tList)
{
InitData();
for (T t : tList) { Add(t); }
}
/// <summary>
/// 析构函数
/// </summary>
inline virtual ~_DList()
{
//_cout << _t("inline _DList<T>::~_DList()\n");
ClearData();
}
//------------------------------------------------------------属性
/// <summary>
/// 双链表最大可以存储的元素个数
/// </summary>
int MaxBuffer()const { return _MaxBuffer; }
/// <summary>
///设定双链表最大可以存储的元素个数
/// </summary>
/// <param name="nCaptionty"></param>
inline void MaxBuffer(int nCaptionty) { _MaxBuffer = nCaptionty; }
inline int CSharp_Count() const { return _Count; }
inline _DListNode<T>* First()const { return _First; }
inline _DListNode<T>* Last()const { return _Last; }
inline _DListNodeIterator<T> begin()const { return _DListNodeIterator<T>(_First); }
/// <summary>
///
/// </summary>
/// <returns></returns>
inline _DListNodeIterator<T> end()const
{
//迭代器使用的语句
//for (_DListNodeIterator<int> f = dl.begin(); f != dl.end(); f++) { }
return _DListNodeIterator<T>(null);
}
//-----------------------------------------------------------运算符重载
/// <summary>
/// 重载的下标操作符 []
/// </summary>
T& operator[](const int& nIndex) const { return IndexOfNode(nIndex)->Data; }
/// <summary>
/// 重载的下标操作符 =
/// </summary>
/// 创建时间： ????-??-?? 最后一次修改时间：2024-04-19
inline _DList<T>& operator = (const _DList<T>& other)
{
if (this != &other)
{
ClearData();
Add(other);
}
return *this;
}
/// <summary>
/// 类型转换
/// </summary>
inline operator _string() const{ return ToString(); }
/// <summary>
/// 类型转换
/// </summary>
inline operator _stdstr() const { return ToString().Data; }
//---------------------------------------------------------虚函数重写
/// <summary>
/// 是否存在 item
/// </summary>
inline virtual bool Contains(const T& item){ return BinarySearch(item) != -1; }
/// <summary>
/// 交换两个节点的数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="iIndex1"></param>
/// <param name="iIndex2"></param>
/// <returns></returns>
inline bool SwapNodeData(const int& iIndex1, const int& iIndex2)
{
_DListNode<T>* pNode1, * pNode2;
pNode1 = IndexOfNode(iIndex1);
pNode2 = IndexOfNode(iIndex2);
if (!(pNode1 != null && pNode2 != null))
{
return false;
}
T ptmp = pNode1->Data;
pNode1->Data = pNode2->Data;
pNode2->Data = ptmp;
return true;
}
/// <summary>
/// 选择排序（Selection sort）是一种简单直观的排序算法。它的工作原理是：第一次从待排序的数据元素中选出最小
/// 或最大）的一个元素，存放在序列的起始位置，然后再从剩余的未排序元素中寻找到最小（大）元素，然后放到已排序
/// 的序列的末尾。以此类推，直到全部待排序的数据元素的个数为零。选择排序是不稳定的排序方法。
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sortord"></param>
/// 创建时间： ???-??-?? 最后一次修改时间：???-??-?? 已测试
inline virtual void Sort_Selection(const _SortOrder& sortord = _SortOrder::s_Minmax)
{
if (_Count == 0 || _Count == 1) return;
_DListNode<T>* min = _First, * tmp = _First->Next;
if (sortord == _SortOrder::s_Minmax) //从小到大
{
while (min->Next != null)
{
while (tmp != null)
{
if (tmp->Data < min->Data) //交换数据
{
T pt = tmp->Data;
tmp->Data = min->Data;
min->Data = pt;
}
tmp = tmp->Next;
}
min = min->Next;
tmp = min->Next;
}
}
else
{
while (min->Next != null)
{
while (tmp != null)
{
if (tmp->Data > min->Data)
{
T pt = tmp->Data;
tmp->Data = min->Data;
min->Data = pt;
}
tmp = tmp->Next;
}
min = min->Next;
tmp = min->Next;
}
}
this->_so = sortord; //已排序
}
/// <summary>
/// 返回索引的节点
/// </summary>
inline virtual _DListNode<T>* IndexOfNode(const int& iPos)const
{
if (iPos < 0 || iPos >= _Count) //错误索引:
{
return NULL;
}
unsigned int nindex = 0;
if (iPos > _Count / 2)
{
_DListNode<T>* pNode = _Last;
while (pNode != null)
{
if (nindex++ == _Count - iPos - 1) { return pNode; }
pNode = pNode->Prev;
}
}
else
{
_DListNode<T>* pNode = _First;
while (pNode != null)
{
if (nindex++ == iPos)
{
return pNode;
}
pNode = pNode->Next;
}
}
return null;
}
/// <summary>
/// 把索引为nIndex的节点移到最后
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="iIndex"></param>
/// <returns></returns>
inline virtual bool MoveLast(const int& iIndex)
{
_DListNode<T>* pNode = IndexOfNode(iIndex);
if (pNode != null)
{
if (pNode == _Last)
return true;
if (pNode == _First) //此时最少两个节点
{
_First = _First->Next;
_First->Prev = null;
_Last->Next = pNode;
pNode->Prev = _Last;
_Last = pNode;
}
else
{
pNode->Prev->Next = pNode->Next;
pNode->Next->Prev = pNode->Prev;
_Last->Next = pNode;
pNode->Prev = _Last;
_Last = pNode;
}
return true;
}
return false;
}
/// <summary>
/// 把节点移到最后
/// </summary>
/// 创建时间： 2022-02-18 最后一次修改时间：2022-02-18
inline virtual bool MoveLast(_DListNode<T>* dnCurrent)
{
if (dnCurrent == null) return false;
this->_so = _SortOrder::s_null;
if (_Count == 0)
{
return false;
}
else if (_Count == 1)
{
return true;
}
else if (_Count == 2)
{
if (dnCurrent == _First) //交换_First 与 _Last 数据
{
T tmp = _First->Data;
_First->Data = _Last->Data;
_Last->Data = tmp;
}
return true;
}
else
{
if (dnCurrent == _First)
{
_First = _First->Next;
_First->Prev = null;
_Last->Next = dnCurrent;
dnCurrent->Next = null;
dnCurrent->Prev = _Last;
_Last = dnCurrent;
}
else if (dnCurrent != _Last)
{
dnCurrent->Prev->Next = dnCurrent->Next;
dnCurrent->Next->Prev = dnCurrent->Prev;
_Last->Next = dnCurrent;
dnCurrent->Next = null;
dnCurrent->Prev = _Last;
_Last = dnCurrent;
}
return true;
}
}
/// <summary>
/// 把索引为nIndex的节点移到最前
/// </summary>
/// <param name="iIndex"></param>
inline virtual bool MoveFirst(const int& iIndex)
{
_DListNode<T>* pNode = IndexOfNode(iIndex);
if (pNode != null)
{
if (pNode == _First)
return true;
if (pNode == _Last) //此时最少两个节点
{
_Last->Prev->Next = null;
_Last = _Last->Prev;
pNode->Prev = null;
pNode->Next = _First;
_First->Prev = pNode;
_First = pNode;
}
else
{
pNode->Prev->Next = pNode->Next;
pNode->Next->Prev = pNode->Prev;
pNode->Next = _First;
_First->Prev = pNode;
pNode->Prev = null;
_First = pNode;
}
return true;
}
return false;
}
/// <summary>
/// 将指定集合的元素添加到末尾
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="item"></param>
/// <returns></returns>
inline virtual bool Add(const T& item)
{
if (_Count == 0)
{
//_First = new _DListNode<T>(item);
_First = _Memory::New< _DListNode<T> >(1);
_First->Data = item;
_First->Next = null;
_First->Prev = null;
_Last = _First;
}
else
{
_DListNode<T>* pNew = _Memory::New< _DListNode<T> >(1);
pNew->Data = item;
pNew->Next = null;
pNew->Prev = _Last;
_Last->Next = pNew;
_Last = pNew;
}
++_Count;
this->_so = _SortOrder::s_null; //要重新排序
return true;
}
/// <summary>
/// 添加一个链表
/// </summary>
inline void Add(const _DList<T>& dList)
{
assert(&dList != null);
_DListNode<T>* pNode = dList._First;
while (pNode != null)
{
Add(pNode->Data);
pNode = pNode->Next;
}
}
protected:
/// <summary>
/// 在结点pListItem前面插入一个结点,成功，返回新的结点，否则返回null
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="pListItem"></param>
/// <param name="rData"></param>
/// <returns></returns>
inline virtual _DListNode<T>* InserNodeFront(_DListNode<T>* pListItem, const T& rData)
{
assert(pListItem != null);
_DListNode<T>* pNode = _Memory::New<_DListNode<T>>(1);
pNode->Data = rData;
//pNode
pNode->Next = pListItem;
pNode->Prev = pListItem->Prev;
//--pListItem->Prev
if (pListItem->Prev != null)
{
pListItem->Prev->Next = pNode;
}
else
{
_First = pNode;
}
//pListItem
pListItem->Prev = pNode;
++_Count;
return pNode;
}
/// <summary>
/// 在结点pListItem后面插入一个结点,成功，返回新的结点，否则返回０；
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="pListItem"></param>
/// <param name="rData"></param>
/// <returns></returns>
inline virtual _DListNode<T>* InserNodeBack(_DListNode<T>* pListItem, const T& rData)
{
if (pListItem == null) return null;
_DListNode<T>* pNode = _Memory::New<_DListNode<T>>(1);
pNode->Data = rData;
//pNode
pNode->Prev = pListItem;
pNode->Next = pListItem->Next;
//pListItem->Next
if (pListItem->Next != null)
{
pListItem->Next->Prev = pNode;
}
else
{
_Last = pNode;
}
//--pListItem
pListItem->Next = pNode;
++_Count;
return pNode;
}
//------------------------------------------------------------操作
public:
/// <summary>
/// 如果已排好序，它会按二分法查找，否则它会普通查找。
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
/// 创建时间： ????-??-?? 最后一次修改时间：????_??_?? 已测试
inline int BinarySearch(const T& item)const {
switch (this->_so)
{
case _SortOrder::s_Maxmin:
{
if (_Count == 0)
{
return -1;
}
if (_Count == 1)
{
//return (_First.Data as IComparable).CompareTo(item) == 0 ? 0 : -1; //C#
return _First->Data == item ? 0 : -1;
}
if (_Count == 2)
{
//if ((_First.Data as IComparable).CompareTo(item) == 0) return 0;
//if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return 1;
if (_First->Data == item) return 0;
if (_First->Next->Data == item) return 1;
return -1;
}
int nPos = (int)_Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)_Count - 1; //右边远素
_DListNode<T>* pNode;
while (nRight >= 0 && nLeft >= 0)
{
pNode = IndexOfNode(nPos);
//int iCom = (item as IComparable).CompareTo(ld.Data);
if (item > pNode->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (item < pNode->Data)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case _SortOrder::s_Minmax:
{
if (_Count == 0)
{
return -1;
}
if (_Count == 1)
{
//return (_First.Data as IComparable).CompareTo(item) == 0 ? 0 : -1;
return _First->Data == item ? 0 : -1;
}
if (_Count == 2)
{
//if ((_First.Data as IComparable).CompareTo(item) == 0) return 0;
//if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return 1;
if (_First->Data == item) return 0;
if (_First->Next->Data == item) return 1;
return -1;
}
int nPos = (int)_Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)_Count - 1; //右边远素
_DListNode<T>* pNode = null;
while (nRight >= 0 && nLeft >= 0)
{
pNode = IndexOfNode(nPos);
//int iCom = (item as IComparable).CompareTo(ld.Data);
if (item < pNode->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (item > pNode->Data)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case _SortOrder::s_null:
{
_DListNode<T>* pNode = _First;
int iCount = 0;
while (pNode != null)
{
if (pNode->Data == item)
{
return iCount;
}
pNode = pNode->Next;
++iCount;
}
break;
}
default:
{
return -1;
}
}
return -1;
}
/// <summary>
/// 清除节点，并释放内存
/// </summary>
/// <typeparam name="T"></typeparam>
/// 创建时间： ????-??-?? 最后一次修改时间：2022-12-24 (已测试）
inline void ClearData() override { ClearMemory(); }
/// <summary>
/// 清除节点，并释放内存
/// </summary>
inline void ClearMemory() override
{
_Count = 0;
_DListNode<T>* dn = _First;
while (dn != null)
{
if (dn->Prev != null)
_Memory::Delete< _DListNode<T> >(dn->Prev, 1);
dn = dn->Next;
}
if (_Last != null)
_Memory::Delete< _DListNode<T> >(_Last, 1);
_First = null;
_Last = null;
this->_so = _SortOrder::s_null;
}
/// <summary>
/// 复制一个链表，清除原来链表的数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ld"></param>
inline void CopyFrom(const _DList<T>& ld)
{
if (this != &ld)
{
ClearData();
_DListNode<T>* pNode = ld._First;
while (pNode != null)
{
Add(pNode->Data);
pNode = pNode->Next;
}
}
}
/// <summary>
/// 移除指定索引处的元素
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="iIndex">要移除的元素的从零开始的索引。</param>
/// <returns>成功返回true,否则返回false</returns>
/// 创建时间：????-??-?? 最后一次修改时间：2023-04-08
inline bool RemoveAt(const int& iIndex)
{
if (iIndex < 0 || iIndex >= _Count) return false;
_DListNode<T>* pNode = _First;
int iCount = 0;
while (pNode != null)
{
if (iCount == iIndex)
{
if (pNode == _First)
{
if (_First->Next == null) //只有一个
{
ClearData();
return true;
}
else
{
_First = _First->Next;
_First->Prev = null;
--_Count;
_Memory::Delete< _DListNode<T> >(pNode, 1);
return true;
}
}
else if (pNode == _Last)
{
if (_Last->Prev == null)
{
ClearData();
return true;
}
else
{
_Last = _Last->Prev;
_Last->Next = null;
--_Count;
_Memory::Delete< _DListNode<T>>(pNode, 1);
return true;
}
}
else
{
pNode->Prev->Next = pNode->Next;
pNode->Next->Prev = pNode->Prev;
--_Count;
_Memory::Delete< _DListNode<T>>(pNode, 1);
return true;
}
}
pNode = pNode->Next;
++iCount;
}
return false;
}
/// <summary>
/// 查找一项数据
/// </summary>
inline _DListNode<T>* FindNodeItem(const T& item)const
{
switch (this->_so)
{
case _SortOrder::s_Maxmin:
{
if (_Count == 0)
{
return null;
}
if (_Count == 1)
{
//return (_First.Data as IComparable).CompareTo(item) == 0 ? _First : null;
return _First->Data == item ? _First : null;
}
if (_Count == 2)
{
//if ((_First.Data as IComparable).CompareTo(item) == 0) return _First;
//if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return _First.Next;
if (_First->Data == item) return _First;
if (_First->Next->Data == item) return _First->Next;
return null;
}
int nPos = (int)(_Count / 2); //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)(_Count - 1); //右边远素
_DListNode<T>* pNode = null;
while (nRight >= 0 && nLeft >= 0)
{
pNode = IndexOfNode(nPos);
//int iCom = (item as IComparable).CompareTo(ld.Data);
if (item > pNode->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (item < pNode->Data)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return pNode;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case _SortOrder::s_Minmax:
{
if (_Count == 0)
{
return null;
}
if (_Count == 1)
{
//return (_First.Data as IComparable).CompareTo(item) == 0 ? _First : null;
return _First->Data == item ? _First : null;
}
if (_Count == 2)
{
//if ((_First.Data as IComparable).CompareTo(item) == 0) return _First;
//if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return _First.Next;
if (_First->Data == item) return _First;
if (_First->Next->Data == item) return _First->Next;
return null;
}
int nPos = (int)(_Count / 2); //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)(_Count - 1); //右边远素
_DListNode<T>* pNode = null;
while (nRight >= 0 && nLeft >= 0)
{
pNode = IndexOfNode(nPos);
//int iCom = (item as IComparable).CompareTo(ld.Data);
if (item < pNode->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (item > pNode->Data)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return pNode;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case _SortOrder::s_null:
{
_DListNode<T>* pNode = _First;
while (pNode != null)
{
//总结:Equals比较的永远是变量的内容是否相同，而= =比较的则是引用地址是否相同(前提:此种类型内部没有对Equals 或= = 进行重写操作，
//否则输出可能会有不同)。string 类型是个特例，因为他的内部对这两个都进行了重写。
if (item == pNode->Data)
{
return pNode;
}
/*
if (pNode.Data.Equals(item))
{
return pNode;
}
*/
pNode = pNode->Next;
}
break;
}
default:
{
return null;
}
}
return null;
}
/// <summary>
/// 删除链表中的数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="pData"></param>
/// <returns></returns>
inline bool RemoveItem(const T& pData)
{
if (this->_so == _SortOrder::s_null)
{
_DListNode<T>* pNode = _First;
while (pNode != null)
{
if (pNode->Data == pData) //找到一项
{
if (pNode == _First) //删除的是第一个节点
{
if (_First->Next != null)
{
_First->Next->Prev = null;
_First = _First->Next;
}
else
{
_First = null;
_Last = null;
}
}
else if (pNode == _Last) //删除的是最后一个节点
{
if (_Last->Prev != null)
{
_Last->Prev->Next = null;
_Last = _Last->Prev;
}
else
{
_Last = null;
_Last = null;
}
}
else //删除的是中间的一个节点
{
pNode->Next->Prev = pNode->Prev;
pNode->Prev->Next = pNode->Next;
}
--_Count;
return true;
}
pNode = pNode->Next;
}
return false;
}
else
{
return RemoveAt(BinarySearch(pData));
}
}
/// <summary>
/// 删除最后一个节点
/// </summary>
/// 创建时间：2020-09-12 最后一次修改时间： 2023-01-18
inline bool DeleteLast()
{
auto pDelete = Last();
if (_Count <= 0)
{
return false;
}
else if (_Count == 1)
{
_First = null;
_Last = null;
_Count = 0;
}
else if (_Count == 2)
{
_Last = _First;
_Last->Prev = null;
_Last->Next = null;
_First->Next = null;
_First->Prev = null;
--_Count;
}
else
{
_Last->Prev->Next = null;
_Last = _Last->Prev;
--_Count;
}
_Memory::Delete<_DListNode<T>>(pDelete, 1);
return true;
}
/// <summary>
/// 添加一个元素，并把它放在首位，其它元素后移,如果后面的元素删除，总无素个数不变，如果元素个数为零，则添加一个无素。
/// </summary>
/// <param name="Item"></param>
/// <param name="bRemoveLast"></param>
/// 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
inline void HistoryAdd(const T& Item, bool bRemoveLast)
{
if (_Count == 0) {
Add(Item);
}
else if (_Count == 1) {
if (bRemoveLast) {
_First->Data = Item;
}
else {
//把无素放在最前
_DListNode<T>* dnNew = _Memory::New<_DListNode<T>>(1);
dnNew->Data = Item;
_First->Prev = dnNew;
dnNew->Next = _First;
_First = dnNew;
++_Count;
}
}
else {
if (bRemoveLast) {
_DListNode<T>* dnDelete = _Last;
//删除最后一个元素
_Last = _Last->Prev;
_Last->Next = null;
_DListNode<T>* dnNew = _Memory::New<_DListNode<T>>(1);
dnNew->Data = Item;
_First->Prev = dnNew;
dnNew->Next = _First;
dnNew->Prev = null;
_First = dnNew;
_Memory::Delete< _DListNode<T>>(dnDelete, 1);
}
else {
//把无素放在最前
_DListNode<T>* dnNew = _Memory::New<_DListNode<T>>(1);
dnNew->Data = Item;
_First->Prev = dnNew;
dnNew->Next = _First;
dnNew->Prev = null;
_First = dnNew;
++_Count;
}
}
}
/// <summary>
/// 出栈(先进后出）,删除最后一个元素，
/// </summary>
/// 创建时间： 2022-04-19 最后一次修改时间：2023-04-06
inline T StackPop()
{
assert(_Count > 0);
T tResult = _Last->Data;
this->RemoveAt(_Count - 1);
return tResult;
}
//----------------------------------------------------------------------------------------------------Python List方法
/// <summary>
/// 将元素tItem添加到列表末尾。
/// </summary>
/// 创建时间： 2023-04-08 最后一次修改时间：2023-04-08
inline void Python_append(const T& tItem)
{
Add(tItem);
}
/// <summary>
/// 在位置nIndex后面插入一个元素tItem
/// </summary>
inline void Python_insert(const int nIndex, const T& tItem)
{
InserNodeBack(IndexOfNode(nIndex), tItem);
}
/// <summary>
/// 在最前面插入一项
/// </summary>
/// <param name="tItem"></param>
/// 创建时间： 2024-04-16 最后一次修改时间：2024-04-16
inline void Inseart_front(const T& tItem)
{
_DListNode<T>* pNode = _Memory::New<_DListNode<T>>(1);
pNode->Data = tItem;
if (_First != null)
{
_First->Prev = pNode;
pNode->Next = _First;
pNode->Prev = null;
_First = pNode;
}
else
{
pNode->Next = null;
pNode->Prev = null;
_First = pNode;
_Last = pNode;
}
++_Count;
}
/// <summary>
/// 删除索引位置为nIndex的元素，并返回删除的元素值的拷贝，如果索引值nIndex = -1，则默认删除为最后一个元素。
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
/// 创建时间： 2023-04-08 最后一次修改时间：2023-04-09
inline T Python_pop(const int nIndex = -1)
{
if (nIndex == -1)
{
return StackPop();
}
else
{
auto dn = this->IndexOfNode(nIndex);
T tmp = T();
if (dn != null)
{
tmp = dn->Data;
DeleteNode(dn);
}
return tmp;
}
}
/// <summary>
/// 删除值为tItem的一项。
/// 注意，方法remove()只删除第一个指定的值。如果要删除的值可能在列表中出现多次，
/// 就需要使用循环来确保每个值都删除。
/// </summary>
inline bool Python_remove(const T& tItem)
{
int n = _Count;
DeleteNode(FindNodeItem(tItem));
return n == _Count;
}
protected:
/// <summary>
/// 删除链表中的节点
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="pListItem"></param>
/// <returns></returns>
//inline bool DeleteNode(const _DListNode<T>* pNodeDelete)
//{
// if (_Count == 0 || pNodeDelete == null)
// {
// return false;
// }
// _DListNode<T>* pNode = _First.Next;
// while (pNode != null)
// {
// if (pNode == pNodeDelete) //找到了
// {
// //pListItem->Prev
// if (pNodeDelete->Prev != null)
// {
// pNodeDelete->Prev->Next = pNodeDelete->Next;
// }
// else //删除的是第一个节点
// {
// _First = pNodeDelete.Next;
// }
// //pListItem->Next
// if (pNodeDelete->Next != null)
// {
// pNodeDelete->Next->Prev = pNodeDelete->Prev;
// }
// else //删除的是最后一个节点
// {
// _Last = pNodeDelete->Prev;
// }
// break;
// }
// pNode = pNode->Next;
// }
// if (pNode != null)
// {
// --_Count;
// _Memory::Delete< _DListNode<T> >(pNode,1); //C#不用清除内存
// return true;
// }
// return false;
//}
/// <summary>
/// 删除链表中的某一节点，注意，这个节点一定要是在链表中的。
/// </summary>
/// 创建时间： 2023-04-09 最后一次修改时间：2023-04-09
inline void DeleteNode(_DListNode<T>* pNodeDelete)
{
if (_Count == 0 || pNodeDelete == null) return;
if (_Count == 1)
{
ClearMemory();
}
else
{
if (pNodeDelete == _First) //删除的是第一个节点
{
_First = _First->Next;
_First->Prev = null;
}
else if (pNodeDelete == _Last)
{
_Last = _Last->Prev;
_Last->Next = null;
}
else
{
pNodeDelete->Prev->Next = pNodeDelete->Next;
pNodeDelete->Next->Prev = pNodeDelete->Prev;
}
--_Count;
_Memory::Delete< _DListNode<T> >(pNodeDelete, 1);
}
}
public:
//---------------------------------------------------------- C++
inline void Push_back(const T& TypeObject) { Add(TypeObject); }
public: //------------------------------------------------------------------重写
/// <summary>
/// 转换为字符串
/// </summary>
/// <returns></returns>
/// 创建时间： 2023-05-16 最后一次修改时间：2024-01-14
inline virtual _string ToSplitString(const _string& sSplitString) const override
{
//不可以这样： const _DList<_Object>* dp = (_DList<_Object> *)pList;
//就算 T 类型数据是从 _Object中继承也不可以。
_string sResult;
sResult.Add(_t("{"));
_string sp = sSplitString.Length == 0 ? _string(_t(",")) : sSplitString;
//是否继承处_Object
if (std::is_base_of<_Object, T>::value)
{
_Object* po;
if (_Count == 1)
{
po = (_Object*)(&_First->Data);
sResult.Add((_string)(*po));
}
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
po = (_Object*)(&dn->Data);
sResult.Add((_string)(*po));
sResult.Add(sp);
dn = dn->Next;
}
po = (_Object*)(&_Last->Data);
sResult.Add((_string)(*po));
}
else
{
if (typeid(T) == typeid(int))
{
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
int* pInt = (int*)&(dn->Data);
sResult.Add(_string::Java_valueOf(*pInt));
sResult.Add(sp);
dn = dn->Next;
}
if (this->Count > 0)
sResult.Add(_string::Java_valueOf(*((int*)(&(_Last->Data)))));
}
else if(typeid(T) == typeid(size_t))
{
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
size_t* pInt = (size_t*)&(dn->Data);
sResult.Add(_string::Java_valueOf(*pInt));
sResult.Add(sp);
dn = dn->Next;
}
if (this->Count > 0)
sResult.Add(_string::Java_valueOf(*((size_t*)(&(_Last->Data)))));
}
else if (typeid(T) == typeid(double))
{
if (_Count == 0) return sResult;
double* pd;
if (_Count == 1)
{
pd = (double*)(&(_First->Data));
sResult.Add(_Convert::DoubleToString(*pd));
}
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
pd = (double*)&(dn->Data);
sResult.Add(_Convert::DoubleToString(*pd));
sResult.Add(sp);
dn = dn->Next;
}
pd = (double*)&(_Last->Data);
sResult.Add(_Convert::DoubleToString(*pd));
}
else if (typeid(T) == typeid(_string))
{
_string* ps;
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
ps = (_string*)(&dn->Data);
sResult.Add(_t("\""));
sResult.Add(*ps);
sResult.Add(_t("\""));
sResult.Add(sp);
dn = dn->Next;
}
if (_Count > 0)
{
ps = (_string*)(&_Last->Data);
sResult.Add(_t("\""));
sResult.Add(*ps);
sResult.Add(_t("\""));
}
}
else if (typeid(T) == typeid(_StrA))
{
_StrA* ps;
if (_Count <= 0)
{
}
else if (_Count == 1)
{
ps = (_StrA*)(&_First->Data);
sResult.Add(_t("\""));
sResult.Add(*ps);
sResult.Add(_t("\""));
}
else
{
_DListNode<T>* dn = this->_First;
while (dn != _Last)
{
ps = (_StrA*)(&dn->Data);
sResult.Add(_t("\""));
sResult.Add(*ps);
sResult.Add(_t("\""));
sResult.Add(_t(','));
dn = dn->Next;
}
ps = (_StrA*)(&_Last->Data);
sResult.Add(_t("\""));
sResult.Add(*ps);
sResult.Add(_t("\""));
}
}
else //所有继承自 _Object 类的数据类型都可以
{
sResult.Add(_t("_LDList::ToSplitString重写,数据类型为："));
sResult.Add(_string(typeid(T).name()));
}
}
sResult.Add(_t("}\n"));
return sResult;
}
inline _string ToString()const
{
return ToSplitString(_t(""));
}
}; //--------------------------------------------------------------------------DList
//-----------------------------------------------------------------------SortedDList
/// <summary>
/// C#语句：public class SortList<T> : _DList<T>
/// </summary>
/// <typeparam name="T"></typeparam>
template<class T>
class SortedDList : public _DList<T>
{
};
//----------------------------------------------------------------------StringList
template<class T>
class _StrList : public _DList<T>
{
public:
//------------------------------------------------------------------构造与析构
_StrList() : _DList<T>() {};
_StrList(const _StrList<T>& sl) : _DList<T>(sl) {};
explicit _StrList(const _char* pStr, const _char* pSplit, bool bIgnoreEmptyString = false)
{
this->InitData();
SplitForSeparator(pStr, pSplit, bIgnoreEmptyString);
}
/// <summary>
/// 要加上 explicit阻止自动转换， 否则执行语名会自动调用这个构造函数 _StrList ls = { L"AA",L"BB"};
/// </summary>
/// <param name="sText"></param>
/// <param name="sSplit"></param>
/// <param name="bIgnoreEmptyString"></param>
explicit _StrList(const T& sText, const T& sSplit, bool bIgnoreEmptyString = false)
{
//assert(sText != null && sSplit != null);
//SplitForSeparator(sText.Data, sSplit.Data, bIgnoreEmptyString);
if (sText.Length == 0) { return; }
if (sSplit.Length == 0) { Add(sText); return; }
int iStart = 0;
int iIndex = sText.IndexOf(sSplit, iStart);
if (iIndex == -1)
{
Add(sText);
return;
}
while (iIndex != -1 && iStart + 1 <= sText.Length)
{
if (iIndex != iStart)
Add(sText.SubStr(iStart, iIndex - iStart));
else
{
if (!bIgnoreEmptyString) Add(T());
}
iStart = iIndex + sSplit.Length;
iIndex = sText.IndexOf(sSplit, iStart);
if (iIndex == -1 && sText.Length != iStart)
Add(sText.SubStr(iStart, sText.Length - iStart)); //拷贝最后一个
}
}
_StrList(std::initializer_list<T> aList)
{
for (T s : aList)
{
Add(s);
}
}
public:
//------------------------------------------------------------------操作
void writeToFile(const T& sFullPathName)
{
}
bool readToFile(const T& sFullPathName)
{
return false;
}
bool readToUnicodeFile(const T& sFileName, const T& sSplit)
{
return false;
}
/// <summary>
/// 获取所有字符串的总共长度
/// </summary>
/// <returns></returns>
/// 创建时间： 2022-11-05 最后一次修改时间： 2022-11-05
int GetStringLength() const
{
int iSum = 0;
auto dn = this->_First;
while (dn != null) {
iSum += (int)dn->Data.Length;
dn = dn->Next;
}
return iSum;
}
T connectForSeparator(const T& sConnector)const
{
if (this->_Count == 0) return _t("");
if (this->_Count == 1) return this->_First->Data;
T tmp(_t(""), GetStringLength() + sConnector.Length * this->_Count + 100);
_DListNode<T>* ldNode = this->_First;
while (ldNode != this->_Last)
{
tmp += ldNode->Data;
tmp += sConnector;
ldNode = ldNode->Next;
}
tmp += this->_Last->Data; //加入最后一项
return tmp;
}
T connectForSeparator(const _char& cConnector) const
{
return connectForSeparator(&cConnector);
}
/// <summary>
/// 返回分隔后的字符串列表
/// </summary>
/// <param name="pStr">原文本</param>
/// <param name="pSplit">分隔字符串</param>
/// <param name="bIgnoreEmptyString">是否忽略空字符串</param>
/// <returns>返回一个字符串列表</returns>
/// 创建时间： 2022-10-04 最后一修改时间：2022-10-05 已测试
_StrList<T>& SplitForSeparator(const _char* pStr, const _char* pSplit, bool bIgnoreEmptyString)
{
if (pStr == null || pSplit == null)
{
_cout << "在中_StrList::SplitForSeparator中" << L"pStr == null || pSplit == null" << "\n";
throw "pStr == null || pSplit == null";
}
this->ClearData();
if (pStr[0] == 0 || pSplit[0] == 0)
{
Add(_t(""), 0, 0);
return *this;
}
int i = 0;
int j = 0;
int nStart = 0, nEnd = 0;
while (pStr[i] != 0) {
// _cout << _t("pStr[i] = ") << pStr[i] << _t("\n"); //此句出错，无任何提示
bool bFind = true;
j = 0;
while (pSplit[j] != 0) {
if (pStr[i + j] != pSplit[j]) {
bFind = false;
break;
}
++j;
}
if (bFind) {
nEnd = i - 1; //此处如果 nEnd 是 int ，则 nEnd = i - 1 => nEnd = 18446744073709551615 => 溢出错误
if (bIgnoreEmptyString) {
if (nStart <= nEnd) {
Add(pStr, nStart, nEnd); //这里应nStart <= nEnd，而不是 nStart < nEnd，因为当 nStart = nEnd 还是有一个字符的
}
}
else {
Add(pStr, nStart, nEnd);
}
nStart = i + j;
i = nStart - 1;
}
++i;
}
//拷贝右边最后一项
if (bIgnoreEmptyString) {
if (nStart <= i - 1) {
Add(pStr, nStart, (int)i - 1);
}
}
else {
Add(pStr, nStart, (int)i - 1);
}
return *this;
}
//int SplitForSeparator(const T& sText, const _char& cSplit);
int IndexOf(const T& s)
{
int nIndex = 0;
auto dn = this->_First;
while (dn)
{
if (dn->Data == s) { return nIndex; }
++nIndex;
dn = dn->Next;
}
return -1;
}
int GetMaxSpaceLength(int nTabCount = 9, int nChineseCharactersCount = 3)const
{
int nMax = 0;
auto dn = this->_First;
while (dn)
{
int n = gs.s_length_space(dn->Data.Data, nTabCount, nChineseCharactersCount);
if (n > nMax) nMax = n;
dn = dn->Next;
}
return nMax;
}
/// <summary>
/// 用tab键使每行等长
/// </summary>
/// <param name="nTabCount"></param>
/// <returns></returns>
/// 创建时间： 2022-10-30 最后一次修改时间： 2022-10-30
T equilongTabLine(int nTabCount = 9)
{
this->RemoveHeadTab();
int iMax = GetMaxSpaceLength(nTabCount);
for (T& s : *this) {
int nSapceLength = gs.s_length_space(s.Data);
int n = (iMax - nSapceLength) / 9;
if (iMax - nSapceLength - n * 9 >= 5)
++n;
else
--n;
for (int j = 0; j < n; j++)
{
s.Add(_t("\t"));
}
}
return connectForSeparator(_t('\n')) + _t('\n');
}
/// <summary>
/// 计算所有行，如果每行都有开始处都有 \t ，则每行除去 \t , 除去个数以最少 \t 行为准。
/// 例：
/// \t\t abc
/// \t bcd
/// \t\t\t dd
/// 运行函数后变成
/// \t abc
/// bcd
/// \t\t dd
/// </summary>
/// 创建时间： 2022-11-05 最后一次修改时间： 2022-11-05
void RemoveHeadTab()
{
int iMin = 100000000;
for (T& s : *this) {
if (s.Length > 0)
{
int iCount = gs.s_headTabCount(s.Data);
if (iCount < iMin) { iMin = iCount; }
//log::d("iCount=" + iCount.ToString(), s);
}
}
//log::d("iMin=" + iMin.ToString());
if (iMin > 0)
{
for (T& s : *this) {
s = s.SubStr(iMin, s.Length - iMin);
}
}
}
//-----------------------------------------------------------------------虚函数
virtual bool Add(const T& item) override
{
//_cout << item << "\n";
return _DList<T>::Add(item);
}
void Add(const _StrList<T>& ls) //覆盖 父类重载函数 virtual bool Add(const T& item);
{
_DListNode<T>* pNode = ls._First;
while (pNode != null)
{
Add(pNode->Data);
pNode = pNode->Next;
}
}
bool Add(const T& str, int nStartPos, int nEndPos)
{
if (str.Length == 0 || nEndPos - nStartPos < 0)
{
Add(T());
}
else {
int nLength = nEndPos - nStartPos + 1;
/*
_Mem<_char> m(nLength + 1);
for (int i = 0; i < nLength; ++i)
{
m.Data[i] = pStr[nStartPos + i];
}
m.Data[nLength] = 0;
*/
Add(str.SubStr(nStartPos, nLength));
}
return false;
}
_string ToSplitString(const _string& sSplitString) const override
{
/*
* auto dn = this->_First;
T sResult;
while (dn != this->_Last)
{
sResult.std_append(dn->Data);
sResult.std_append(sConnector);
dn = dn->Next;
}
if (this->_Last != null)
{
sResult.std_append(dn->Data);
}
char c = '\n';
sResult.std_append(c );
return sResult;
*/
return _DList<T>::ToSplitString(sSplitString);
}
};
/// <summary>
/// 不重复的字符串列表
/// </summary>
/// <typeparam name="T"></typeparam>
/// 创建时间： 2023-05-11 最后一次修改时间：2023-05-11
template<class T>
class _UStrList : public _StrList<T>
{
public:
/// <summary>
/// 加入一个串，如果这个串存在，则把这项移到最后。
/// </summary>
/// <param name="item"></param>
/// 创建时间： ????-??-?? 最后一次修改时间：2023-05-11 (已测试）
bool Add(const T& item)override
{
bool bFind = false;
_DListNode<T>* dnTemp = this->_First;
while (dnTemp != null)
{
if (dnTemp->Data == item)
{
this->MoveLast(dnTemp);
return false;
}
dnTemp = dnTemp->Next;
}
_StrList<T>::Add(item);
return true;
}
};
/// <summary>
/// 值都是唯一的字符串列表， Case Insensitive(不区分大小写)
/// </summary>
template<class T>
class _UStrListCI : public _StrList<T>
{
public:
/// <summary>
/// 加入一个串，如果这个串存在，则把这项移到最后。
/// </summary>
/// <param name="item"></param>
/// 创建时间： ????-??-?? 最后一次修改时间：2022-02-18
bool Add(const T& item)override
{
bool bFind = false;
_DListNode<T>* dnTemp = this->_First;
while (dnTemp != null)
{
if (dnTemp->Data.CSharp_ToLower() == item.CSharp_ToLower())
{
this->MoveLast(dnTemp);
return false;
}
dnTemp = dnTemp->Next;
}
_StrList<T>::Add(item);
return true;
}
/*
/// <summary>
/// 返回前面一个值
/// </summary>
/// <param name="tCurrValue"></param>
/// <returns></returns>
T& GetForward(T& sCurr)
{
int iIndex = BinarySearch(sCurr);
if (iIndex != -1)
{
if (iIndex + 1 < _Count)
return this[iIndex + 1];
}
return null;
}
/// <summary>
/// 返回后面的一个值
/// </summary>
/// <param name="sCurr"></param>
/// <returns></returns>
T& GetBack(T& sCurr)
{
int iIndex = BinarySearch(sCurr);
if (iIndex != -1)
{
if (iIndex - 1 < _Count && iIndex - 1 >= 0)
return this[iIndex - 1];
}
return null;
}
*/
};
/// <summary>
/// 已排序好的字符串列表
/// </summary>
template<class T>
class _SStrList : public _StrList<T>
{
public:
_SStrList(const _SortOrder so = _SortOrder::s_Minmax)
{
this->_so = so;
if (this->_so == _SortOrder::s_null)
{
throw _t("排序不能为空！");
}
}
//-------------------------------------------------------------------------------重写
/// <summary>
/// 快速添加字符串，差不多用了8个小时(两天），才写成。
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
bool Add(const T& item) override
{
if (this->_Count < 3)
{
bool bInsert = false;
_DListNode<T>* ld = this->_First;
while (ld != null)
{
if (this->_so == _SortOrder::s_Maxmin)
{
if (item >= ld->Data)
{
_StrList<T>::InserNodeFront(ld, item); bInsert = true;
break;
}
}
else
{
if (item <= ld->Data)
{
_StrList<T>::InserNodeFront(ld, item); bInsert = true; break;
}
}
ld = ld->Next;
}
if (!bInsert) _StrList<T>::Add(item);
return true;
}
int nPos = this->_Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = this->_Count - 1; //右边远素
if (this->_so == _SortOrder::s_Maxmin)
{
_DListNode<T>* ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
if (item >= ld->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
this->InserNodeFront(ld, item);
return true;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
this->InserNodeBack(ld, item);
return true;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
_DListNode<T>* ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
if (item <= ld->Data)
{
if (nRight == nLeft || nPos == nLeft)
{
this->InserNodeFront(ld, item);
return true;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
this->InserNodeBack(ld, item);
return true;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return true;
}
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
bool Contains(const T& item) override
{
if (this->_Count == 0) return false;
if (this->_Count == 1) return this->_First->Data == item;
if (this->_Count == 2) return this->_First->Data == item || this->_First->Next->Data == item;
int nPos = (int)this->_Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)this->_Count - 1; //右边远素
_DListNode<T>* ld = null;
if (this->_so == _SortOrder::s_Maxmin)
{
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
int iCom = item.CompareTo(ld->Data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
int iCom = item.CompareTo(ld->Data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return false;
}
};
/// <summary>
/// 值都是唯一的字符串列表,且已排好序，区分大小写
/// </summary>
template<class T>
class _SUStrList : public _SStrList<T>
{
public:
bool Add(const T& item)override
{
if (this->Contains(item))
return false;
return _SStrList<T>::Add(item);
}
_SUStrList(_SortOrder so = _SortOrder::s_Minmax) : _SStrList<T>(so)
{
}
};
/// <summary>
/// UStringListCI_值都是唯一,且已排序的字符串列表，不区分大小写
/// </summary>
template<class T>
class _SUStrListUI : public _SUStrList<T>
{
public:
_SUStrListUI(_SortOrder st) : _SUStrList<T>(st)
{
}
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
bool Contains(const T& item) override
{
if (this->_Count == 0) return false;
if (this->_Count == 1) return this->_First->Data.ToLower().CompareTo(item.ToLower()) == 0;
if (this->_Count == 2) return this->_First->Data.ToLower().CompareTo(item.ToLower()) == 0 || this->_First->Next->Data.ToLower().CompareTo(item.ToLower()) == 0;
int nPos = (int)this->_Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)this->_Count - 1; //右边远素
_DListNode<T>* ld = null;
if (this->_so == _SortOrder::s_Maxmin)
{
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
int iCom = item.ToLower().CompareTo(ld->Data.ToLower());
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
while (nRight >= 0 && nLeft >= 0)
{
ld = this->IndexOfNode(nPos);
int iCom = item.ToLower().CompareTo(ld->Data.ToLower());
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return false;
}
};
_LF_END_
#endif2. C#版
cpp
/*****************************************************************************
创建时间 : 2006年12月19日
文件名 ： List_.cs
作者 ： 李锋
Email : ruizhilf@139.com
联系电话 : 13828778863,25722732
－－－－－－－－－－－－－－－－－－－－－－最后一次修改时间：2022年10月10日
*******************************************************************************/
using System;
using System.Collections.Generic;
using System.Collections;
using System.Text.RegularExpressions;
using System.IO;
using System.Diagnostics;
namespace lf
{
#region DListNote_(双向链表的节点)
/// <summary>
/// 双向链表的节点
/// </summary>
/// <typeparam name="T"></typeparam>
public class DListNote_<T>
{
/// <summary>
/// 节点数据
/// </summary>
public T Data;
/// <summary>
/// 前一个节点
/// </summary>
public DListNote_<T> Prev;
/// <summary>
/// 下一个节点
/// </summary>
public DListNote_<T> Next;
public DListNote_(T aData)
{
Data = aData;
Prev = null;
Next = null;
}
}
#endregion
#region Sortord_( 排序方式)
/// <summary>
/// 排序顺序
/// </summary>
public enum Sortord_
{
s_min_max, //从小到大
s_max_min, //从大到小
s_null //无排序顺序
}
#endregion
#region //====================================================== DList_(双向链表)
/// <summary>
/// 双向链表
/// </summary>
/// <typeparam name="T"></typeparam>
public class DList_<T> : IEnumerable
{
protected DListNote_<T> _First; //第一个节点
protected DListNote_<T> _Last; //最后一个节点
protected int _Count; //节点个数
protected Sortord_ _sortord; //排序顺序
//------------------------------------------------------------------------------------------属性
/// <summary>
/// 实际包含的元素数
/// </summary>
public int Count
{
get
{
return _Count;
}
}
/// <summary>
/// 获取或设置指定索引处的元素
/// </summary>
/// <param name="index">要获得或设置的元素从零开始的索引</param>
/// <returns>指定索引处的元素</returns>
public virtual T this[int index]
{
get
{
return IndexOfNote(index).Data;
}
set
{
IndexOfNote(index).Data = value;
}
}
//---------------------------------------------------------------------------------构造与析构
//---------------------------------------------------------------------------------运算符重载
/// <summary>
///
/// </summary>
/// <param name="dLeft"></param>
/// <param name="dlRight"></param>
/// <returns></returns>
/// 创建时间： 2021-11-07 最后一次修改时间：2021-11-07
public static DList_<T> operator +(DList_<T> dLeft, DList_<T> dlRight)
{
/*
DList_<T> dlResult = new DList_<T> ();
dlResult.Add(dLeft);
dlResult.Add(dlRight);
return dlResult;
*/
return new DList_<T> { dLeft, dlRight };
}
//---------------------------------------------------------------------------------功能函数
/// <summary>
/// 将指定集合的元素添加到末尾
/// </summary>
/// <param name="item">要添加到的末尾处的对象。对于引用类型，该值可以为 null</param>
/// <returns>如成功，返回真，否则返回假</returns>
public virtual void Add(T item)
{
if (_Count == 0)
{
_First = new DListNote_<T>(item);
_First.Next = null;
_First.Prev = null;
_Last = _First;
}
else
{
DListNote_<T> pNew = new DListNote_<T>(item);
pNew.Next = null;
pNew.Prev = _Last;
_Last.Next = pNew;
_Last = pNew;
}
++_Count;
_sortord = Sortord_.s_null; //要重新排序
}
/// <summary>
///
/// </summary>
/// <param name="nIndex"></param>
/// <param name="item"></param>
/// <returns></returns>
/// 创建时间： 2022-08-11 最后一次修改时间：2022-08-12
public virtual void Insert(int nIndex, T item)
{
if ((uint)nIndex > (uint)_Count)
{
throw new Exception("DList_.Insert 插入位置错误！");
}
if (nIndex == 0)
{
if(_First != null)
{
DListNote_<T> dnNew = new DListNote_<T>(item);
_First.Prev = dnNew;
dnNew.Next = _First;
_First = dnNew;
++_Count;
_sortord = Sortord_.s_null;
}
else
{
Add(item);
}
}
else if(nIndex == _Count)
{
Add(item);
}
else
{
DListNote_<T> dnNew = new DListNote_<T>(item);
DListNote_<T> dnNext = IndexOfNote(nIndex);
DListNote_<T> dnPrev = dnNext.Prev;
dnNew.Next = dnNext;
dnNew.Prev = dnPrev;
dnNext.Prev = dnNew;
dnPrev.Next = dnNew;
++_Count;
_sortord = Sortord_.s_null;
}
}
public void Add(DList_<T> dList)
{
if (dList == null)
{
throw new System.Exception("DList_<T>.Add中参数dList==null");
}
DListNote_<T> ld = dList._First;
while (ld != null)
{
Add(ld.Data);
ld = ld.Next;
}
}
public override string ToString()
{
string sResult = "";
DListNote_<T> dnNote = _First;
while (dnNote != null)
{
sResult += dnNote.Data.ToString();
sResult += "\n";
dnNote = dnNote.Next;
}
return sResult;
}
public string ToString(string sSplit)
{
string sResult = "";
DListNote_<T> dnNote = _First;
while (dnNote != null)
{
sResult += dnNote.Data.ToString();
if(dnNote != Last)
sResult += sSplit;
dnNote = dnNote.Next;
}
return sResult;
}
/// <summary>
/// 使用指定的比较器在整个已排序的 中搜索元素，并返回该元素从零开始的索引
/// </summary>
/// <param name="item">要定位的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果找到 item，则为已排序的 的从零开始的索引；否则为-1; </returns>
public int BinarySearch(T item)
{
switch (_sortord)
{
case Sortord_.s_max_min:
{
if (Count == 0)
{
return -1;
}
if (Count == 1)
{
return (_First.Data as IComparable).CompareTo(item) == 0 ? 0 : -1;
}
if (Count == 2)
{
if( (_First.Data as IComparable).CompareTo(item) == 0) return 0;
if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return 1;
return -1;
}
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<T> ld;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = (item as IComparable).CompareTo(ld.Data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case Sortord_.s_min_max:
{
if (Count == 0)
{
return -1;
}
if (Count == 1)
{
return (_First.Data as IComparable).CompareTo(item) == 0 ? 0 : -1;
}
if (Count == 2)
{
if ((_First.Data as IComparable).CompareTo(item) == 0) return 0;
if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return 1;
return -1;
}
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = (item as IComparable).CompareTo(ld.Data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case Sortord_.s_null:
{
DListNote_<T> pNote = _First;
int iCount = 0;
while (pNote != null)
{
if (pNote.Data.Equals(item))
{
return iCount;
}
pNote = pNote.Next;
++iCount;
}
break;
}
default:
{
return -1;
}
}
return -1;
}
/**
* 功能：清空所有元素的所有数据，并清空链表
* 创建时间：????/??/??
* 最后一次修改时间：2022-07-02
*/
public void Clear()
{
_Count = 0;
DListNote_<T> pTemp1 = _First;
while (pTemp1 != null)
{
DListNote_<T> pTemp2 = pTemp1.Next;
pTemp1.Data = default(T);
pTemp1.Next = null;
pTemp1.Prev = null;
pTemp1 = pTemp2;
}
_First = null;
_Last = null;
}
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
public virtual bool Contains(T item)
{
return BinarySearch(item) != -1;
}
/// <summary>
/// 复制一个链表，清除原来链表的数据
/// </summary>
/// <param name="ld"></param>
public void CopyFrom(DList_<T> ld)
{
if (!this.Equals(ld))
{
Clear();
DListNote_<T> ldItem = ld._First;
while (ldItem != null)
{
Add(ldItem.Data);
ldItem = ldItem.Next;
}
}
}
/*
public int IndexOf(T item)
{
return -1;
}
public int IndexOf(T item, int index)
{
return -1;
}
public void Insert(int index, T item)
{
}
public int LastIndexOf(T item)
{
return -1;
}
public int LastIndexOf(T item, int index, int Count)
{
return -1;
}
*/
/// <summary>
/// 移除指定索引处的元素
/// </summary>
/// <param name="iIndex">要移除的元素的从零开始的索引。</param>
/// <returns>成功返回true,否则返回false</returns>
public bool RemoveAt(int iIndex)
{
if (iIndex < 0 || iIndex + 1 > _Count) { return false; }
DListNote_<T> pNode = _First;
int iCount = 0;
while (pNode != null)
{
if (iCount == iIndex)
{
if (pNode == _First)
{
if (_First.Next == null) //只有一个
{
Clear();
return true;
}
else
{
_First = _First.Next;
_First.Prev = null;
--_Count;
return true;
}
}
else if (pNode == _Last)
{
if (_Last.Prev == null)
{
Clear();
return true;
}
else
{
_Last = _Last.Prev;
_Last.Next = null;
--_Count;
return true;
}
}
else
{
pNode.Prev.Next = pNode.Next;
pNode.Next.Prev = pNode.Prev;
pNode = null;
--_Count;
return true;
}
}
pNode = pNode.Next;
++iCount;
}
return false;
}
/// <summary>
/// 反向排列链表
/// </summary>
/// 创建时间： 2022-04-20 最后一次修改时间：2022-04-20
public virtual void Reverse()
{
DListNote_<T> dnTemp = First;
while(dnTemp != null)
{
LMath.Swap(ref dnTemp.Next, ref dnTemp.Prev);
dnTemp = dnTemp.Prev;
}
LMath.Swap(ref _First, ref _Last);
}
/// <summary>
/// 添加一个元素，并把它放在首位，其它元素后移,如棵后面的元素删除，总无素个数不变，如果无素个数为零，则添加一个无素。
/// </summary>
/// <param name="Item"></param>
/// <param name="bRemoveLast"></param>
/// 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
public void StackPush(T Item, bool bRemoveLast = false){
if (_Count == 0){
Add(Item);
}
else if (_Count == 1){
if (bRemoveLast){
_First.Data = Item;
}
else{
//把无素放在最前
DListNote_<T> dnNew = new DListNote_<T>(Item);
_First.Prev = dnNew;
dnNew.Next = _First;
_First = dnNew;
++_Count;
}
}
else{
if (bRemoveLast){
//删除最后一个元素
_Last = _Last.Prev;
_Last.Next = null;
//把无素放在最前
DListNote_<T> dnNew = new DListNote_<T>(Item);
_First.Prev = dnNew;
dnNew.Next = _First;
dnNew.Prev = null;
_First = dnNew;
}
else {
//把无素放在最前
DListNote_<T> dnNew = new DListNote_<T>(Item);
_First.Prev = dnNew;
dnNew.Next = _First;
dnNew.Prev = null;
_First = dnNew;
++_Count;
}
}
}
/// <summary>
/// 删除第一个元素，出栈
/// </summary>
/// 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
public void StackPop(){ RemoveAt(0); }
/// <summary>
/// 转换成数组
/// </summary>
/// <returns></returns>
public T[] ToArray()
{
T[] aResult = new T[Count];
int n = 0;
DListNote_<T> pNoteTemp = _First;
while (pNoteTemp != null)
{
aResult[n++] = pNoteTemp.Data;
pNoteTemp = pNoteTemp.Next;
}
return aResult;
}
/// <summary>
/// 交换两个节点的数据
/// </summary>
/// <param name="nIndex1"></param>
/// <param name="nIndex2"></param>
/// <returns></returns>
protected virtual bool swapNoteData(int iIndex1, int iIndex2)
{
DListNote_<T> pNote1, pNote2;
pNote1 = IndexOfNote(iIndex1);
pNote2 = IndexOfNote(iIndex2);
if (!(pNote1 != null && pNote2 != null))
{
return false;
}
T ptmp = pNote1.Data;
pNote1.Data = pNote2.Data;
pNote2.Data = ptmp;
return true;
}
/// <summary>
/// 选择排序可以说是最简单的一种排序方法：
/// 1.找到数组中最小的那个元素
/// 2.将最小的这个元素和数组中第一个元素交换位置
/// 3.在剩下的元素中找到最小的的元素，与数组第二个元素交换位置
/// 重复以上步骤，即可以得到有序数组。
/// </summary>
public virtual void sort_selection(Sortord_ sortord)
{
if (_Count == 0 || _Count == 1) return;
//is关键字用于检查对象是否与给定类型兼容。注意了，这里is并不是"是"的意思，而是"兼容"。
if (!(_First.Data is IComparable)) // 判断是否具有IComparable接口，以确定是否存在CompareTo()方法
{
throw new Exception("没有IComparable接口");
}
DListNote_<T> min = _First, tmp = _First.Next;
if (sortord == Sortord_.s_min_max)
{
while (min.Next != null)
{
while (tmp != null)
{
if ((tmp.Data as IComparable).CompareTo(min.Data) < 0) //交换位置
{
T pt = tmp.Data;
tmp.Data = min.Data;
min.Data = pt;
}
tmp = tmp.Next;
}
min = min.Next;
tmp = min.Next;
}
}
else
{
while (min.Next != null)
{
while (tmp != null)
{
if ((tmp.Data as IComparable).CompareTo(min.Data) > 0)
{
T pt = tmp.Data;
tmp.Data = min.Data;
min.Data = pt;
}
tmp = tmp.Next;
}
min = min.Next;
tmp = min.Next;
}
}
_sortord = sortord; //已排序
}
/// <summary>
/// 返回索引的节点,从零开始
/// </summary>
/// <param name="nPos"></param>
/// <returns></returns>
public virtual DListNote_<T> IndexOfNote(int iPos)
{
if (iPos >= _Count || iPos < 0) throw new System.Exception("DListNote_<T>.IndexOfNote 错误索引: " + iPos.ToString() + "！");
uint nindex = 0;
if (iPos > _Count / 2)
{
DListNote_<T> pNote = _Last;
while (pNote != null)
{
if (nindex++ == _Count - iPos - 1){ return pNote;}
pNote = pNote.Prev;
}
}
else
{
DListNote_<T> pNote = _First;
while (pNote != null)
{
if (nindex++ == iPos)
{
return pNote;
}
pNote = pNote.Next;
}
}
return null;
}
/// <summary>
/// 在结点pListItem前面插入一个结点,成功，返回新的结点，否则返回０
/// </summary>
/// <param name="pListItem"></param>
/// <param name="pData"></param>
/// <returns></returns>
protected virtual DListNote_<T> InserNoteFront(DListNote_<T> pListItem, T pData)
{
if (pListItem == null)
{
throw new System.Exception("函数提示：pListItem = null");
}
DListNote_<T> pNote = new DListNote_<T>(pData);
//pNote
pNote.Next = pListItem;
pNote.Prev = pListItem.Prev;
//--pListItem->Prev
if (pListItem.Prev != null)
{
pListItem.Prev.Next = pNote;
}
else
{
_First = pNote;
}
//pListItem
pListItem.Prev = pNote;
++_Count;
return pNote;
}
/// <summary>
/// 在结点pListItem后面插入一个结点,成功，返回新的结点，否则返回０；
/// </summary>
/// <param name="pListItem"></param>
/// <param name="pData"></param>
/// <returns></returns>
protected virtual DListNote_<T> InserNoteBack(DListNote_<T> pListItem, T pData)
{
if (pListItem == null) return null;
DListNote_<T> pNote = new DListNote_<T>(pData);
//pNote
pNote.Prev = pListItem;
pNote.Next = pListItem.Next;
//pListItem->Next
if (pListItem.Next != null)
{
pListItem.Next.Prev = pNote;
}
else
{
_Last = pNote;
}
//--pListItem
pListItem.Next = pNote;
++_Count;
return pNote;
}
/// <summary>
/// 找查一个项，而不是节点，返回的这个节点相当于指针。
/// </summary>
/// <param name="pData">项值</param>
/// <returns></returns>
public DListNote_<T> FindNoteItem(T item)
{
switch (_sortord)
{
case Sortord_.s_max_min:
{
if (Count == 0)
{
return null;
}
if (Count == 1)
{
return (_First.Data as IComparable).CompareTo(item) == 0 ? _First : null;
}
if (Count == 2)
{
if ((_First.Data as IComparable).CompareTo(item) == 0) return _First;
if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return _First.Next;
return null;
}
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = (item as IComparable).CompareTo(ld.Data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return ld;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case Sortord_.s_min_max:
{
if (Count == 0)
{
return null;
}
if (Count == 1)
{
return (_First.Data as IComparable).CompareTo(item) == 0 ? _First : null;
}
if (Count == 2)
{
if ((_First.Data as IComparable).CompareTo(item) == 0) return _First;
if ((_First.Next.Data as IComparable).CompareTo(item) == 0) return _First.Next;
return null;
}
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = (item as IComparable).CompareTo(ld.Data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return ld;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case Sortord_.s_null:
{
DListNote_<T> pNote = _First;
while (pNote != null)
{
//总结:Equals比较的永远是变量的内容是否相同，而= =比较的则是引用地址是否相同(前提:此种类型内部没有对Equals 或= = 进行重写操作，
//否则输出可能会有不同)。string 类型是个特例，因为他的内部对这两个都进行了重写。
if ((item as IComparable).CompareTo(pNote.Data) == 0)
{
return pNote;
}
/*
if (pNote.Data.Equals(item))
{
return pNote;
}
*/
pNote = pNote.Next;
}
break;
}
default:
{
return null;
}
}
return null;
}
/// <summary>
/// 把索引为nIndex的节点移到最后
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
protected virtual bool MoveLast(int iIndex)
{
DListNote_<T> pNote = IndexOfNote(iIndex);
if (pNote != null)
{
if (pNote == _Last)
return true;
if (pNote == _First) //此时最少两个节点
{
_First = _First.Next;
_First.Prev = null;
_Last.Next = pNote;
pNote.Prev = _Last;
_Last = pNote;
}
else
{
pNote.Prev.Next = pNote.Next;
pNote.Next.Prev = pNote.Prev;
_Last.Next = pNote;
pNote.Prev = _Last;
_Last = pNote;
}
return true;
}
return false;
}
/// <summary>
///
/// </summary>
/// <param name="dnCurrent"></param>
/// <returns></returns>
/// 创建时间： 2022-02-18 最后一次修改时间：2022-02-18
protected virtual bool MoveLast(DListNote_<T> dnCurrent)
{
if (dnCurrent == null) return false;
_sortord = Sortord_.s_null;
if(_Count == 0)
{
return false;
}
else if(_Count == 1)
{
return true;
}
else if(_Count == 2)
{
if(dnCurrent == _First) //交换_First 与 _Last 数据
{
T tmp = _First.Data;
_First.Data = _Last.Data;
_Last.Data = tmp;
}
return true;
}
else
{
if (dnCurrent == _First)
{
_First = _First.Next;
_First.Prev = null;
_Last.Next = dnCurrent;
dnCurrent.Next = null;
dnCurrent.Prev = _Last;
_Last = dnCurrent;
}
else if (dnCurrent != _Last)
{
dnCurrent.Prev.Next = dnCurrent.Next;
dnCurrent.Next.Prev = dnCurrent.Prev;
_Last.Next = dnCurrent;
dnCurrent.Next = null;
dnCurrent.Prev = _Last;
_Last = dnCurrent;
}
return true;
}
}
/// <summary>
/// 把索引为nIndex的节点移到最前
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
protected virtual bool MoveFirst(int iIndex)
{
DListNote_<T> pNote = IndexOfNote(iIndex);
if (pNote != null)
{
if (pNote == _First)
return true;
if (pNote == _Last) //此时最少两个节点
{
_Last.Prev.Next = null;
_Last = _Last.Prev;
pNote.Prev = null;
pNote.Next = _First;
_First.Prev = pNote;
_First = pNote;
}
else
{
pNote.Prev.Next = pNote.Next;
pNote.Next.Prev = pNote.Prev;
pNote.Next = _First;
_First.Prev = pNote;
pNote.Prev = null;
_First = pNote;
}
return true;
}
return false;
}
/// <summary>
/// 返回第一个节点
/// </summary>
public DListNote_<T> First
{
get
{
return _First;
}
}
/// <summary>
/// 返回最后一个节点
/// </summary>
public DListNote_<T> Last
{
get { return _Last; }
}
//--------------------------------------------------------------------------------------
/// <summary>
/// 构造函数
/// </summary>
public DList_()
{
_Count = 0; _First = null; _Last = null;
_sortord = Sortord_.s_null;
}
/// <summary>
/// 删除链表中的数据
/// </summary>
/// <param name="pData"></param>
/// <returns></returns>
public bool RemoveItem(T pData)
{
if (_sortord == Sortord_.s_null)
{
DListNote_<T> pListItem = _First;
while (pListItem != null)
{
if (pListItem.Data.Equals(pData)) //找到一项
{
if (pListItem == _First) //删除的是第一个节点
{
if (_First.Next != null)
{
_First.Next.Prev = null;
_First = _First.Next;
}
else
{
_First = null;
_Last = null;
}
}
else if (pListItem == _Last) //删除的是最后一个节点
{
if (_Last.Prev != null)
{
_Last.Prev.Next = null;
_Last = _Last.Prev;
}
else
{
_First = null;
_Last = null;
}
}
else //删除的是中间的一个节点
{
pListItem.Next.Prev = pListItem.Prev;
pListItem.Prev.Next = pListItem.Next;
}
--_Count;
return true;
}
pListItem = pListItem.Next;
}
return false;
}
else
{
return RemoveAt(BinarySearch(pData));
}
}
/// <summary>
/// 删除链表中的节点
/// </summary>
/// <param name="pListItem"></param>
/// <returns></returns>
public bool DeleteNode(DListNote_<T> pListItem)
{
if (_Count == 0 || pListItem == null)
{
return false;
}
DListNote_<T> pNote = _First.Next;
while (pNote != null)
{
if (pNote == pListItem) //找到了
{
//pListItem->Prev
if (pListItem.Prev != null)
{
pListItem.Prev.Next = pListItem.Next;
}
else //删除的是第一个节点
{
_First = pListItem.Next;
}
//pListItem->Next
if (pListItem.Next != null)
{
pListItem.Next.Prev = pListItem.Prev;
}
else //删除的是最后一个节点
{
_Last = pListItem.Prev;
}
break;
}
pNote = pNote.Next;
}
if (pNote != null)
{
--_Count;
return true;
}
return false;
}
/// <summary>
/// 删除最后一个节点
/// </summary>
/// 创建时间：2020-09-12 最后一次修改时间： 2020-09-12
public bool DeleteLast()
{
if (_Count <= 0)
{
return false;
}
else if (_Count == 1)
{
_First = null;
_Last = null;
_Count = 0;
return true;
}
else if(_Count == 2)
{
_Last = _First;
_Last.Prev = null;
_Last.Next = null;
_First.Next = null;
_First.Prev = null;
--_Count;
}
else
{
_Last.Prev.Next = null;
_Last = _Last.Prev;
--_Count;
}
return true; ;
}
//--------------------------------------------------------------------------接口
/// <summary>
//示例为了使一个类支持集合初始化器，它必须实现IEnumerable接口并至少具有一个Add方法。从C＃6开始，
//IEnumerable可以Add使用扩展方法使用自定义方法扩展任何实现的集合。
/// </summary>
/// 创建时间：2020-05-07 最后一次修改时间： 2020-05-07
/// <returns></returns>
public IEnumerator GetEnumerator()
{
return new DListNoteEnum_<T>(_First);
}
}
/// <summary>
/// 节点数据的foreach迭代
/// </summary>
/// 创建时间：2020-05-07 最后一次修改时间： 2022-10-10
/// <typeparam name="T"></typeparam>
public class DListNoteEnum_<T> : IEnumerator
{
private DListNote_<T> _dn;
private DListNote_<T> _dnCurr;
private int _iIndex;
public DListNoteEnum_(DListNote_<T> dn)
{
_dn = dn;
_iIndex = -1;
}
/// <summary>
/// IEnumerator最终调用的是这个函数访问
/// </summary>
public Object Current { get{ return _dnCurr.Data; } }
public virtual bool MoveNext()
{
++_iIndex; //指针首先向前移动一位
if (_dnCurr == null)
{
_dnCurr = _dn;
}
else
{
_dnCurr = _dnCurr.Next;
}
return _dnCurr != null;
}
public virtual void Reset()
{
_dnCurr = null;
_iIndex = -1;
}
};
#endregion
#region//====================================================== SortList_ 已排序的链表
/// <summary>
/// 已排序的链表
/// </summary>
/// <typeparam name="T"></typeparam>
public class SortList_<T> : DList_<T>
{
public SortList_(Sortord_ sortord)
{
_sortord = sortord;
}
//-------------------------------------------------------------------------------重写
/// <summary>
/// 添加一项到结尾处，item不能为NULL.
/// </summary>
/// <param name="item">项</param>
/// 创建时间： ????-??-?? 最后一次修改时间：2021-11-07
public override void Add(T item)
{
if (item == null)
{
throw new System.Exception("SortList_.Add 方法提示：类型值不能为null！");
}
if ( !(item is IComparable) ) // 判断是否具有IComparable接口，以确定是否存在CompareTo()方法
{
throw new System.Exception("SortList_<" + item.GetType().Name + ">.Add 方法提示：类型"" + item.GetType().Name + ""没有IComparable接口！");
}
if (Count < 3)
{
bool bInsett = false; DListNote_<T> ldNote = First;
while (ldNote != null)
{
if (_sortord == Sortord_.s_max_min)
{
if ((item as IComparable).CompareTo(ldNote.Data) >= 0)
{
base.InserNoteFront(ldNote, item); bInsett = true; break;
}
}
else
{
if ((item as IComparable).CompareTo(ldNote.Data) <= 0)
{
base.InserNoteFront(ldNote, item); bInsett = true; break;
}
}
ldNote = ldNote.Next;
}
if (!bInsett) base.Add(item);
return;
}
int nPos = Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = Count - 1; //右边远素
if (_sortord == Sortord_.s_max_min)
{
DListNote_<T> ldNote = null;
while (nRight >= 0 && nLeft >= 0)
{
ldNote = IndexOfNote(nPos);
if ((item as IComparable).CompareTo(ldNote.Data) >= 0)
{
if (nRight == nLeft || nPos == nLeft)
{
InserNoteFront(ldNote, item);
return;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
InserNoteBack(ldNote, item);
return;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
if ((item as IComparable).CompareTo(ld.Data) <= 0)
{
if (nRight == nLeft || nPos == nLeft)
{
InserNoteFront(ld, item);
return;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
InserNoteBack(ld, item);
return;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return;
}
}
#endregion
#region//================================================= UniqueList_ 每个项的值都是唯一的链表
/// <summary>
/// 每个项的值都是唯一的链表
/// </summary>
/// <typeparam name="T"></typeparam>
public class UniqueList_<T> : DList_<T>
{
public override void Add(T item)
{
if (BinarySearch(item) == -1)
{
base.Add(item);
}
}
}
#endregion
#region //========================== =========SUList_,已排序，且每一项的值都是唯一的链表
/// <summary>
/// SUList_,已排序，且每一项的值都是唯一的链表
/// </summary>
/// <typeparam name="T"></typeparam>
public class SUList_<T> : SortList_<T>
{
/// <summary>
/// 将指定集合的元素添加到末尾
/// </summary>
/// <param name="item">要添加到的末尾处的对象。对于引用类型，该值可以为 null</param>
/// <returns>如成功，返回真，否则返回假</returns>
public override void Add(T item)
{
if (BinarySearch(item) == -1)
{
base.Add(item);
}
}
public SUList_(Sortord_ sortord)
: base(sortord)
{
}
}
#endregion
#region //================================＝＝=======StringList_字符串列表
/// <summary>
/// 字符串列表
/// </summary>
public class StringList_ : DList_<string>
{
/// <summary>
/// 默认构函数
/// </summary>
public StringList_()
{
}
/// <summary>
/// 以分隔符构造一个字符串列表
/// </summary>
/// <param name="sText">原文字符串</param>
/// <param name="sSplit">分隔符</param>
/// <param name="bIgnoreEmptyString">返回列表，空字符串不忽略，如果没有分隔符，则回原字符</param>
/// 创建时间： ????-??-?? 最后一修改时间：2020-09-03
public StringList_(string sText, string sSplit, bool bIgnoreEmptyString = false)
{
if(sText == null || sText.Length == 0){ return; }
if(sSplit.Length == 0) { Add(sText); return; }
int nPos = sText.IndexOf(sSplit);
int nFindStart = 0;
while(nPos != -1)
{
if (nPos - nFindStart == 0)
{
if (!bIgnoreEmptyString)
{
Add("");
}
}
else
{
Add(sText.Substring(nFindStart, nPos - nFindStart));
}
nFindStart = nPos + sSplit.Length;
nPos = sText.IndexOf(sSplit, nFindStart);
if(nPos == -1) //拷贝最后一个
{
if(nFindStart < sText.Length)
{
Add(sText.Substring(nFindStart, sText.Length - nFindStart));
}
else
{
if (!bIgnoreEmptyString)
{
Add("");
}
}
}
}
}
#if !WINDOWS_UWP
/// <summary>
/// 把列表写入文件
/// </summary>
/// <param name="sFileName">文件名</param>
public void WriteToFile(string sFileName)
{
System.IO.File.Delete(sFileName);
DListNote_<string> dl = First;
FileStream fs = File.Create(sFileName);
while (dl != null)
{
byte[] bArray = System.Text.Encoding.Default.GetBytes(dl.Data);
fs.Write(bArray, 0, bArray.Length);
bArray = System.Text.Encoding.Default.GetBytes("\r\n");
//fs.WriteByte((byte)'\r'); 不行，UNICODE代码
//fs.WriteByte((byte)'\n');
fs.Write(bArray, 0, bArray.Length);
dl = dl.Next;
}
fs.Close();
}
/// <summary>
/// 从文件中读取列表分隔符为"\r\n";
/// </summary>
/// <param name="sFileName">文件名</param>
/// <returns></returns>
public bool ReadToFile(string sFileName)
{
if (File.Exists(sFileName))
{
FileStream fs = new FileStream(sFileName, FileMode.Open, FileAccess.Read);
Byte[] bArray = new Byte[fs.Length];
fs.Read(bArray, 0, bArray.Length);
fs.Close();
CopyFrom(System.Text.Encoding.Default.GetString(bArray)._Split("\r\n"));
return true;
}
return false;
}
/// <summary>
/// 从文件中读取列表分隔符
/// </summary>
/// <param name="sFileName"></param>
/// <param name="sSplit"></param>
/// <returns></returns>
public bool readToUnicodeFile(string sFileName,string sSplit)
{
if (File.Exists(sFileName))
{
FileStream fs = new FileStream(sFileName, FileMode.Open, FileAccess.Read);
Byte[] bArray = new Byte[fs.Length];
fs.Read(bArray, 0, bArray.Length);
fs.Close();
CopyFrom(System.Text.Encoding.Unicode.GetString(bArray)._Split(sSplit));
return true;
}
return false;
}
public void SaveToUnicodeFile(string sFileName, string sSplit)
{
/*
if(_Count > 0)
{
string sContent = "";
int n = 1;
foreach(string s in this)
{
sContent += s;
if(n != _Count)
sContent += sSplit;
}
Byte[] bArray = System.Text.ASCIIEncoding.ASCII.GetBytes(sContent);
FileStream fs = new FileStream(sFileName, FileMode.Create, FileAccess.Write);
fs.Write(bArray, 0, bArray.Length);
fs.Close();
}
*/
}
/// <summary>
/// 把所有字符串写入磁盘，但每个字符串中的空格和不可打印字符都不会写入，每15个字符串加入一个换行符。
/// </summary>
/// <param name="sFileName"></param>
/// <param name="sSplit"></param>
/// 创建时间： 2022-02-09 最后一次修改时间：2022-02-09
public void WriteToTxtFile(string sFileName, string sSplit)
{
if (_Count > 0)
{
string sContent = "";
int n = 1;
foreach (string s in this)
{
sContent += s._RemoveUnprintableAndWhitespace();
if (n != _Count)
sContent += sSplit;
if(n % 15 == 0)
sContent += "\n";
++n;
}
File.WriteAllText(sFileName,sContent);
}
}
/// <summary>
/// 用分隔 符读取文本文件，空格和不可打印字符都不读取。
/// </summary>
/// <param name="sFileName"></param>
/// <param name="sSplit"></param>
/// 创建时间： 2022-02-09 最后一次修改时间：2022-02-18
public void ReadFromTxtFile(string sFileName, string sSplit)
{
if (!File.Exists(sFileName))
return;
string sContent = File.ReadAllText(sFileName)._RemoveUnprintableAndWhitespace();
if(sContent.Trim().Length > 0)
{
CopyFrom(sContent._Split(sSplit));
}
}
#endif
/// <summary>
/// 用分隔符把每个项连成一片，如果分隔符为空，则直接连成一片
/// </summary>
/// <param name="sSeparator">分隔符</param>
/// <returns></returns>
public string ConnectForSeparator(string sSeparator)
{
if (Count == 0) return "";
if (Count == 1) return First.Data;
string tmp = "";
DListNote_<string> ldNote = First;
while (ldNote != Last)
{
tmp += ldNote.Data;
tmp += sSeparator;
ldNote = ldNote.Next;
}
tmp += Last.Data; //加入最后一项
return tmp;
}
/// <summary>
/// 用分隔符把每个项连成一片，如果分隔符为空，则直接连成一片
/// </summary>
/// <param name="cSeparator">分隔符</param>
/// <returns></returns>
public string ConnectForSeparator(char cSeparator)
{
return ConnectForSeparator(cSeparator.ToString());
}
/// <summary>
/// 清空列表，用分隔符把字符串分裂成多项,返回项数
/// </summary>
/// <param name="sText"></param>
/// <param name="sSplit"></param>
/// <returns></returns>
public int splitForSeparator(string sText, char cSplit)
{
Clear();
string[] sl = sText.Split(cSplit);
for (int i = 0; i < sl.Length; ++i)
{
Add(sl[i]);
}
return Count;
}
/// <summary>
/// 查找第一个可印的字符串，如果找到则返回它的值，没找到返回空字符中。
/// </summary>
/// <returns></returns>
/// 创建时间： 2022-01-21 最后一次修改时间：2022-01-21
public string FindFirstPrintableStringValue()
{
DListNote_<string> pNote = _First;
while (pNote != null)
{
if(pNote.Data._IsHavePrintableChar())
{
return pNote.Data;
}
pNote = pNote.Next;
}
return "";
}
/// <summary>
/// 查找第一个可印的字符串的索引，如果找到则返回它的索引，没找到返回-1。
/// </summary>
/// <returns></returns>
/// 创建时间： 2022-01-21 最后一次修改时间：2022-01-21
public int FindFirstPrintableStringIndex()
{
DListNote_<string> pNote = _First;
int nResult = 0;
while (pNote != null)
{
if (pNote.Data._IsHavePrintableChar())
{
return nResult;
}
pNote = pNote.Next;
++nResult;
}
return -1;
}
/// <summary>
///
/// </summary>
/// <param name="ls"></param>
/// <returns></returns>
/// 创建时间： ????-??-?? 最后一次修改时间：2021-10-10
public virtual bool Add(StringList_ ls)
{
DListNote_<string> pNote = ls._First;
while (pNote != null)
{
Add(pNote.Data);
pNote = pNote.Next;
}
return true;
}
/// <summary>
/// 是开头插入一个字符串
/// </summary>
/// <param name="sItem"></param>
/// <returns></returns>
/// 创建时间： 2022-01-18 最后一次修改时间：2022-01-18
public virtual bool InserFront(string sItem)
{
if(_Count == 0)
Add(sItem);
InserNoteFront(_First,sItem);
return true;
}
/// <summary>
/// 查找字符吕 S
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
/// <exception cref="Exception"></exception>
/// 创建时间： ????-??-?? 最后一次修改时间：2022-09-18
public int IndexOf(string s)
{
//if(s.Length == 0){ throw new Exception("字符串不能为空！");}
DListNote_<string> pNote = _First;
int iIndex = 0;
while (pNote != null)
{
if (pNote.Data == s)
{
return iIndex;
}
pNote = pNote.Next;
++iIndex;
}
return - 1;
}
}
#endregion
#region //================================＝＝=======LSStringList已排序好的字符串列表
/// <summary>
/// 已排序好的字符串列表
/// </summary>
public class SStringList_ : StringList_
{
public SStringList_(Sortord_ sortord)
{
if (sortord == Sortord_.s_null)
{
throw new System.Exception("排序不能为空！");
}
_sortord = sortord;
}
//-------------------------------------------------------------------------------重写
/// <summary>
/// 快速添加字符串，差不多用了8个小时(两天），才写成。
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public override void Add(string item)
{
if (Count < 3)
{
bool bInsett = false; DListNote_<string> ld = First;
while (ld != null)
{
if (_sortord == Sortord_.s_max_min)
{
if (item.CompareTo(ld.Data) >= 0)
{
base.InserNoteFront(ld, item); bInsett = true; break;
}
}
else
{
if (item.CompareTo(ld.Data) <= 0)
{
base.InserNoteFront(ld, item); bInsett = true; break;
}
}
ld = ld.Next;
}
if (!bInsett) base.Add(item);
return;
}
int nPos = Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = Count - 1; //右边远素
if (_sortord == Sortord_.s_max_min)
{
DListNote_<string> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
if (item.CompareTo(ld.Data) >= 0)
{
if (nRight == nLeft || nPos == nLeft)
{
InserNoteFront(ld, item);
return;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
InserNoteBack(ld, item);
return;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
DListNote_<string> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
if (item.CompareTo(ld.Data) <= 0)
{
if (nRight == nLeft || nPos == nLeft)
{
InserNoteFront(ld, item);
return;
}
nRight = nPos - 1;
}
else
{
if (nRight == nLeft || nPos == nRight)
{
InserNoteBack(ld, item);
return;
}
nLeft = nPos + 1;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return;
}
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
public override bool Contains(string item)
{
if (Count == 0) return false;
if (Count == 1) return First.Data.CompareTo(item) == 0;
if (Count == 2) return First.Data.CompareTo(item) == 0 || First.Next.Data.CompareTo(item) == 0;
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<string> ld = null;
if (_sortord == Sortord_.s_max_min)
{
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = item.CompareTo(ld.Data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = item.CompareTo(ld.Data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return false;
}
}
#endregion
#region //================================＝＝=======UStringList_值都是唯一的字符串列表，区分大小写
/// <summary>
/// 值都是唯一的字符串列表
/// </summary>
/// <typeparam name="T"></typeparam>
public class UStringList_ : StringList_
{
public override void Add(string item)
{
if(BinarySearch(item) == -1)
base.Add(item);
}
public void Add(string[] sArray)
{
for (int i = 0; i < sArray.Length; ++i)
{
Add(sArray[i]);
}
}
public override bool Add(StringList_ ls)
{
bool bResult = true;
DListNote_<string> pFirst = ls.First;
while (pFirst != null)
{
if (BinarySearch(pFirst.Data) == -1)
{
base.Add(pFirst.Data);
}
else
{
bResult = false;
}
pFirst = pFirst.Next;
}
return bResult;
}
}
#endregion
#region//======================================SUStringList_ 值都是唯一的字符串列表,且已排好序，区分大小写
/// <summary>
/// 值都是唯一的字符串列表,且已排好序，区分大小写
/// </summary>
public class SUStringList_ : SStringList_
{
public override void Add(string item)
{
if (Contains(item))
return;
base.Add(item);
}
public SUStringList_(Sortord_ sortord)
: base(sortord)
{
}
}
#endregion
#region //================================＝＝=======UStringListCI_值都是唯一的字符串列表，不区分大小写
/// <summary>
/// 值都是唯一的字符串列表， Case Insensitive(不区分大小写)
/// </summary>
public class UStringListCI_ : StringList_
{
/// <summary>
/// 加入一个串，如果这个串存在，则把这项移到最后。
/// </summary>
/// <param name="item"></param>
/// 创建时间： ????-??-?? 最后一次修改时间：2022-02-18
public override void Add(string item)
{
bool bFind = false;
DListNote_<string> dnTemp = First;
while(dnTemp != null)
{
if(dnTemp.Data.ToLower() == item.ToLower())
{
MoveLast(dnTemp);
bFind = true;
break;
}
dnTemp = dnTemp.Next;
}
if (!bFind)
base.Add(item);
}
/// <summary>
/// 返回前面一个值
/// </summary>
/// <param name="tCurrValue"></param>
/// <returns></returns>
public string GetForward(string sCurr)
{
int iIndex = BinarySearch(sCurr);
if (iIndex != -1)
{
if (iIndex + 1 < Count)
return this[iIndex + 1];
}
return null;
}
/// <summary>
/// 返回后面的一个值
/// </summary>
/// <param name="sCurr"></param>
/// <returns></returns>
public string GetBack(string sCurr)
{
int iIndex = BinarySearch(sCurr);
if (iIndex != -1)
{
if (iIndex - 1 < Count && iIndex - 1 >= 0)
return this[iIndex - 1];
}
return null;
}
}
#endregion
#region //================================＝＝=======UStringListCI_值都是唯一,且已排序的字符串列表，不区分大小写
/// <summary>
/// UStringListCI_值都是唯一,且已排序的字符串列表，不区分大小写
/// </summary>
public class SUStringListUI_ : SUStringList_
{
public SUStringListUI_(Sortord_ sortord): base(sortord)
{
}
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
public override bool Contains(string item)
{
if (Count == 0) return false;
if (Count == 1) return First.Data.ToLower().CompareTo(item.ToLower()) == 0;
if (Count == 2) return First.Data.ToLower().CompareTo(item.ToLower()) == 0 || First.Next.Data.ToLower().CompareTo(item.ToLower()) == 0;
int nPos = (int)Count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)Count - 1; //右边远素
DListNote_<string> ld = null;
if (_sortord == Sortord_.s_max_min)
{
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = item.ToLower().CompareTo(ld.Data.ToLower());
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
else
{
while (nRight >= 0 && nLeft >= 0)
{
ld = IndexOfNote(nPos);
int iCom = item.ToLower().CompareTo(ld.Data.ToLower());
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return false;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return false;
}
nLeft = nPos + 1;
}
else
{
return true;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
}
return false;
}
}
#endregion
/// <summary>
/// 历史记录，相当于栈
/// </summary>
/// <typeparam name="T"></typeparam>
/// 创建时间：2022-03-06 最后一次修改时间：2022-04-19
public class UniqueStack_<T>
{
private DList_<T> m_List;
private int m_Capacity;
public DList_<T> List => m_List;
/// <summary>
/// 元素容量
/// </summary>
public int Capacity => m_Capacity;
/// <summary>
/// 无素个数
/// </summary>
public int Count => m_List.Count;
public UniqueStack_(int nCapacity = 15)
{
if(nCapacity <= 0)
{
lg.ShowError("容量不能小于等于 0 ！");
m_Capacity = 15;
}
else
{
m_Capacity = nCapacity;
}
m_List = new DList_<T>();
}
/// <summary>
/// 添加一项
/// </summary>
/// <param name="item"></param>
/// 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
public void Push(T item)
{
bool bFind = m_List.RemoveItem(item); //如果找到，则删除
if (!bFind)
{
if (m_List.Count < m_Capacity)
{
m_List.StackPush(item);
}
else
{
//插入一个Item，所有元素后移一位
m_List.StackPush(item,true);
}
}
else
{
//插入一个Item，所有元素后移一位
m_List.StackPush(item);
}
}
/// <summary>
/// 出栈
/// </summary>
public void Pop() => List.StackPop();
}
public class HistoryStringList_ : UniqueStack_<string>
{
public override string ToString()
{
string sResult = "";
foreach (string s in List)
{
sResult += s + "||";
}
if (sResult != "")
{
sResult = sResult.Substring(0, sResult.Length - 2);
}
return sResult;
}
public void FromString(string sVaule)
{
List.Clear();
StringList_ ls = sVaule._Split("||");
DListNote_<string> dnNote = ls.Last;
while (dnNote != null){
Push(dnNote.Data);
dnNote = dnNote.Prev;
}
}
public HistoryStringList_(int nCapacity = 15) : base(nCapacity) { }
}
public class HistoryStringListPair_ : UniqueStack_<Pair_<string, string>>
{
public override string ToString()
{
string sResult = "";
foreach (Pair_<string, string> pair in List)
{
sResult += pair.First + "," + pair.Second + "||";
}
if (sResult != "")
{
sResult = sResult.Substring(0, sResult.Length - 2);
}
return sResult;
}
public void FromString(string sVaule)
{
List.Clear();
StringList_ ls1 = sVaule._Split("||");
DListNote_<string> dnNote = ls1.Last;
while (dnNote != null)
{
StringList_ ls2 = dnNote.Data._Split(",");
if (ls2.Count == 2)
{
Push(ls2[0], ls2[1]);
}
dnNote = dnNote.Prev;
}
}
public HistoryStringListPair_(int nCapacity = 15) : base(nCapacity) { }
public void Push(string s1, string s2) { base.Push(new Pair_<string, string>(s1, s2)); }
public Pair_<string, string> IndexOfFirst(string sFirst)
{
foreach (Pair_<string, string> pair in List)
{
if (pair.First == sFirst)
return pair;
}
return null;
}
public Pair_<string, string> IndexOfSecond(string sSecond)
{
foreach(Pair_<string, string> pair in List)
{
if(pair.Second == sSecond)
return pair;
}
return null;
}
}
public class LPairList<T1, T2> : IEnumerable
{
DList_<Pair_<T1, T2>> m_list;
public DList_<Pair_<T1, T2>> List { get { return m_list; } }
public LPairList()
{
m_list = new DList_<Pair_<T1, T2>>();
}
public Pair_<T1, T2> GetIndex(int iIndex)
{
DListNote_<Pair_<T1, T2>> dn = m_list.IndexOfNote(iIndex);
if (dn == null)
return null;
else
return dn.Data;
}
public void RemoveAt(int iIndex)
{
m_list.RemoveAt(iIndex);
}
public void Clear()
{
m_list.Clear();
}
public void Add(T1 First, T2 Second)
{
m_list.Add(new Pair_<T1, T2>(First, Second));
}
public void Add(Pair_<T1, T2> p)
{
m_list.Add(p);
}
public void CopyTo(IList il1, IList il2)
{
il1.Clear();
il2.Clear();
foreach (DListNote_<Pair_<T1, T2>> dn in m_list)
{
il1.Add(dn.Data.First);
il2.Add(dn.Data.First);
}
}
public int Count { get { return m_list.Count; } }
/// <summary>
/// 创建时间： ????-??-?? 最后一次修改时间：2020-05-31
/// 查找sFirstStringValue,找不到返回NULL
/// </summary>
/// <param name="sFirst"></param>
/// <returns></returns>
public Pair_<T1, T2> IndexFirst(T1 sFirstStringValue)
{
foreach (Pair_<T1, T2> p in m_list)
{
if (p.First.Equals(sFirstStringValue))
return p;
}
return null;
}
/// <summary>
/// 创建时间： ????-??-?? 最后一次修改时间：2020-05-31
/// 查找sSecondStringValue,找不到返回NULL
/// </summary>
/// <param name="sFirst"></param>
/// <returns></returns>
public Pair_<T1, T2> IndexSecond(T2 sSecondStringValue)
{
foreach (Pair_<T1, T2> p in m_list)
{
if (p.Second.Equals(sSecondStringValue))
return p;
}
return null;
}
/// <summary>
/// 创建时间： 2020-05-31 最后一次修改时间：2020-05-31
/// 查找第一项，找到返回第二项的值，没找到返回第二项的默认值。
/// </summary>
/// <param name="sFirstStringValue"></param>
/// <returns></returns>
public T2 IndexFirstValue(T1 sFirstStringValue)
{
foreach (Pair_<T1, T2> p in m_list)
{
if (p.First.Equals(sFirstStringValue))
return p.Second;
}
return default(T2);
}
/// <summary>
/// 创建时间： 2020-05-31 最后一次修改时间：2020-05-31
/// 查找第三项，找到返回第一项的值，没找到返回第一项的默认值。
/// </summary>
/// <param name="sSecondStringValue"></param>
/// <returns></returns>
public T1 IndexSecondValue(T2 sSecondStringValue)
{
foreach (Pair_<T1, T2> p in m_list)
{
if (p.Second.Equals(sSecondStringValue))
return p.First;
}
return default(T1);
}
IEnumerator IEnumerable.GetEnumerator()
{
return m_list.GetEnumerator();
}
}
public class LStringPairList : LPairList<string, string>
{
/// <summary>
/// 依据slFirst查找Second
/// </summary>
/// <param name="slFirst"></param>
/// 创建时间：2020-05-09 最后一次修改时间：2020-05-09
/// <returns></returns>
public StringList_ GetSecondList(StringList_ slFirst)
{
StringList_ slResult = new StringList_();
foreach (Pair_<string, string> p in this)
{
if (slFirst.FindNoteItem(p.First) != null)
{
slResult.Add(p.Second);
}
}
return slResult;
}
/// <summary>
/// 依据slSecond查找First
/// </summary>
/// <param name="slSecond"></param>
/// 创建时间：2020-05-09 最后一次修改时间：2020-05-09
/// <returns></returns>
public StringList_ GetFirstList(StringList_ slSecond)
{
StringList_ slResult = new StringList_();
foreach (Pair_<string, string> p in this)
{
if (slSecond.FindNoteItem(p.Second) != null)
{
slResult.Add(p.First);
}
}
return slResult;
}
}
}3. Java 版
java
/***************************************************************************************************
创建时间 : 2020年01月12日
文件名: : LDList.java
作者 : 李锋
Email : ruizhilf@139.com
联系电话 : 13828778863
作用 : 双向链表
此文件暂时以 C# 编程风格，因为 C#也有一份代码，是从C#移植过来的。
----------------------------------------------------------------------最后一次修改时间： 2022年07月02日
**************************************************************************************************/
package JavaPlatform.System;
import java.util.ArrayList;
import java.util.Iterator;
import JavaPlatform.jp;
class DListNote_<T>
{
/**
* 节点数据
*/
public T data;
/**
* 前一个节点
*/
public DListNote_<T> prev;
/**
* 下一个节点
*/
public DListNote_<T> next;
/**
* 功能：定位节点指针。
*
* @param nMove 指针移动的个数，0为不变，负数是向上prev方法移动，正数是向下next移动。
* @return 返回指向节点的指针 ，移动超出范围返回值为null。
* 创建时间：2022/07/02 最后一次修改时间：2022/07/02
*/
public DListNote_<T> pointerTo(int nMove)
{
if ( nMove >= 0){ //向下
int n = 0;
DListNote_<T> pTemp = this;
//计数
while(pTemp != null){
if( n == nMove) break;
pTemp = pTemp.next;
++ n;
}
return pTemp;
}else{ //向上
int n = 0;
DListNote_<T> pTemp = this;
//计数
while(pTemp != null){
if( n == - nMove ) break;
pTemp = pTemp.prev;
++ n;
}
return pTemp;
}
}
public DListNote_(T adata) {
data = adata;
}
}
/**
* The type D list.
*
* @param <T> the type parameter
*/
public class DList_<T extends Comparable<T>> implements Iterable<T>{
/**
* 排序方式
*/
public enum Sortord_
{
s_min_max, //从小到大
s_max_min, //从大到小
s_null //无排序顺序
}
protected DListNote_<T> _first; //第一个节点
protected DListNote_<T> _last; //最后一个节点
protected int _count; //节点个数
protected Sortord_ _sortord; //排序顺序
/**
* 适用于 foreach 语句
* @return
*/
public Iterator<T> iterator() {
/*
return new Iterator() {
private int m_cursor = -1;
@Override
public T next() {
++m_cursor;
return indexOfNote(m_cursor).data;
}
@Override
public boolean hasNext() {
return m_cursor + 1 < _count;
}
};*/
return new DListNoteEnum_<T>(_first);
}
private void initData(){
_count = 0;
_first = null;
_last = null;
_sortord = Sortord_.s_null;
}
/**
* Instantiates a new D list.
*/
/// <summary>
/// 构造函数
/// </summary>
public DList_() { initData(); }
@SafeVarargs
public DList_(T... args){
initData();
for( T t: args){ add(t); }
}
/**
* Get first d list note.
*
* @return the d list note
*/
public DListNote_<T> getFirst(){ return _first; }
/**
* Get last d list note.
*
* @return the d list note
*/
public DListNote_<T> getLast(){ return _last; }
/**
* Get sortord sortord.
*
* @return the sortord
*/
public Sortord_ getSortord(){ return _sortord; }
/**
* Get count int.
*
* @return the int
*/
/// <summary>
/// 实际包含的元素数
/// </summary>
public int getCount(){
return _count;
}
/**
* Add boolean.
*
* @param item the item
* @return the boolean
*/
/// <summary>
/// 将指定集合的元素添加到末尾
/// </summary>
/// <param name="item">要添加到的末尾处的对象。对于引用类型，该值可以为 null</param>
/// <returns>如成功，返回真，否则返回假</returns>
public Boolean add(T item){
if (_count == 0){
_first = new DListNote_<T>(item);
_first.next = null;
_first.prev = null;
_last = _first;
}else{
DListNote_ pNew = new DListNote_<T>(item);
pNew.next = null;
pNew.prev = _last;
_last.next = pNew;
_last = pNew;
}
++_count;
return true;
}
/**
* Add.
*
* @param dList the d list
*/
public void add(DList_<T> dList){
if (dList == null){
throw new NullPointerException();
}
DListNote_<T> ld = dList._first;
while (ld != null){
add(ld.data);
ld = ld.next;
}
}
/**
* Index of note d list note.
*
* @param iPos the pos
* @return the d list note
*/
/// <summary>
/// 返回索引的节点,从零开始
/// </summary>
/// <param name="nPos"></param>
/// <returns></returns>
public DListNote_<T> indexOfNote(int iPos)
{
if (iPos >= _count || iPos < 0) throw new IndexOutOfBoundsException();
int nindex = 0;
if (iPos > _count / 2)
{
DListNote_<T> pNote = _last;
while (pNote != null)
{
if (nindex++ == _count - iPos - 1){ return pNote;}
pNote = pNote.prev;
}
}
else
{
DListNote_<T> pNote = _first;
while (pNote != null)
{
if (nindex++ == iPos)
{
return pNote;
}
pNote = pNote.next;
}
}
return null;
}
/**
* Bnary search int.
*
* @param item the item
* @return the int
*/
/// <summary>
/// 使用指定的比较器在整个已排序的 中搜索元素，并返回该元素从零开始的索引
/// </summary>
/// <param name="item">要定位的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果找到 item，则为已排序的 的从零开始的索引；否则为-1; </returns>
public int bnarySearch(T item)
{
switch (_sortord)
{
case s_max_min:
{
if (_count == 0)
{
return -1;
}
if (_count == 1)
{
return _first.data.compareTo(item) == 0 ? 0 : -1;
}
if (_count == 2)
{
if( _first.data.compareTo(item) == 0) return 0;
if ( _first.next.data.compareTo(item) == 0) return 1;
return -1;
}
int nPos = _count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = _count - 1; //右边远素
DListNote_<T> ld;
while (nRight >= 0 && nLeft >= 0)
{
ld = indexOfNote(nPos);
int iCom = item.compareTo(ld.data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case s_min_max:
{
if (_count == 0)
{
return -1;
}
if (_count == 1)
{
return _first.data.compareTo(item) == 0 ? 0 : -1;
}
if (_count == 2)
{
if (_first.data.compareTo(item) == 0) return 0;
if (_first.next.data.compareTo(item) == 0) return 1;
return -1;
}
int nPos = (int)_count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = (int)_count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = indexOfNote(nPos);
int iCom = item.compareTo(ld.data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return -1;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return -1;
}
nLeft = nPos + 1;
}
else
{
return nPos;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case s_null:
{
DListNote_<T> pNote = _first;
int iCount = 0;
while (pNote != null)
{
if (pNote.data.equals(item))
{
return iCount;
}
pNote = pNote.next;
++iCount;
}
break;
}
default:
{
return -1;
}
}
return -1;
}
/**
* Contains boolean.
*
* @param item the item
* @return the boolean
*/
/// <summary>
/// 确定某元素是否在列表中
/// </summary>
/// <param name="item">查找的对象。对于引用类型，该值可以为 null。</param>
/// <returns>如果在列表中找到 item，则为 true，否则为 false。</returns>
public boolean contains(T item)
{
return bnarySearch(item) != -1;
}
/**
* Copy from.
*
* @param ld the ld
*/
/// <summary>
/// 复制一个链表，清除原来链表的数据
/// </summary>
/// <param name="ld"></param>
public void copyFrom(DList_<T> ld)
{
if (!this.equals(ld))
{
clear();
DListNote_<T> ldItem = ld._first;
while (ldItem != null)
{
add(ldItem.data);
ldItem = ldItem.next;
}
}
}
/*
/// <summary>
/// 转换成数组
/// </summary>
/// <returns></returns>
public T[] toArray()
{
T[] aResult = new T[_count]; //错误: 创建泛型数组
int n = 0;
DListNote_ pNoteTemp = _first;
while (pNoteTemp != null)
{
aResult[n++] = pNoteTemp.data;
pNoteTemp = pNoteTemp.next;
}
return aResult;
}
*/
/**
* Swap notedata boolean.
*
* @param iIndex1 the index 1
* @param iIndex2 the index 2
* @return the boolean
*/
/// <summary>
/// 交换两个节点的数据
/// </summary>
/// <param name="nIndex1"></param>
/// <param name="nIndex2"></param>
/// <returns></returns>
public boolean swapNotedata(int iIndex1, int iIndex2)
{
DListNote_<T> pNote1, pNote2;
pNote1 = indexOfNote(iIndex1);
pNote2 = indexOfNote(iIndex2);
if (!(pNote1 != null && pNote2 != null))
{
return false;
}
T pTmp = pNote1.data;
pNote1.data = pNote2.data;
pNote2.data = pTmp;
return true;
}
/**
* Sort selection.
*
* @param sortord the sortord
*/
/// <summary>
/// 选择排序可以说是最简单的一种排序方法：
/// 1.找到数组中最小的那个元素
/// 2.将最小的这个元素和数组中第一个元素交换位置
/// 3.在剩下的元素中找到最小的的元素，与数组第二个元素交换位置
/// 重复以上步骤，即可以得到有序数组。
/// </summary>
public void sort_selection(Sortord_ sortord)
{
_sortord = sortord; //已排序
if (_count == 0 || _count == 1) return;
DListNote_<T> min = _first, tmp = _first.next;
if (sortord == Sortord_.s_min_max)
{
while (min.next != null)
{
while (tmp != null)
{
if ( tmp.data.compareTo(min.data) < 0) //交换位置
{
T pt = tmp.data;
tmp.data = min.data;
min.data = pt;
}
tmp = tmp.next;
}
min = min.next;
tmp = min.next;
}
}
else
{
while (min.next != null)
{
while (tmp != null)
{
if (tmp.data.compareTo(min.data) > 0)
{
T pt = tmp.data;
tmp.data = min.data;
min.data = pt;
}
tmp = tmp.next;
}
min = min.next;
tmp = min.next;
}
}
}
/**
* Inser note front d list note.
*
* @param pListItem the p list item
* @param pData the p data
* @return the d list note
*/
/// <summary>
/// 在结点pListItem前面插入一个结点,成功，返回新的结点，否则返回０
/// </summary>
/// <param name="pListItem"></param>
/// <param name="pData"></param>
/// <returns></returns>
protected DListNote_ InserNoteFront(DListNote_ pListItem, T pData)
{
if (pListItem == null)
{
throw new NullPointerException();
}
DListNote_ pNote = new DListNote_(pData);
//pNote
pNote.next = pListItem;
pNote.prev = pListItem.prev;
//--pListItem->prev
if (pListItem.prev != null)
{
pListItem.prev.next = pNote;
}
else
{
_first = pNote;
}
//pListItem
pListItem.prev = pNote;
++_count;
return pNote;
}
/**
* Inser note back d list note.
*
* @param pListItem the p list item
* @param pData the p data
* @return the d list note
*/
/// <summary>
/// 在结点pListItem后面插入一个结点,成功，返回新的结点，否则返回０；
/// </summary>
/// <param name="pListItem"></param>
/// <param name="pData"></param>
/// <returns></returns>
protected DListNote_ InserNoteBack(DListNote_ pListItem, T pData)
{
if (pListItem == null) return null;
DListNote_ pNote = new DListNote_(pData);
//pNote
pNote.prev = pListItem;
pNote.next = pListItem.next;
//pListItem->next
if (pListItem.next != null)
{
pListItem.next.prev = pNote;
}
else
{
_last = pNote;
}
//--pListItem
pListItem.next = pNote;
++_count;
return pNote;
}
/**
* Find note item d list note.
*
* @param item the item
* @return the d list note
*/
/// <summary>
/// 找查一个项，而不是节点，返回的这个节点相当于指针。
/// </summary>
/// <param name="pData">项值</param>
/// <returns></returns>
public DListNote_ findNoteItem(T item)
{
switch (_sortord)
{
case s_max_min:
{
if (_count == 0)
{
return null;
}
if (_count == 1)
{
return _first.data.compareTo(item) == 0 ? _first : null;
}
if (_count == 2)
{
if (_first.data.compareTo(item) == 0) return _first;
if (_first.next.data.compareTo(item) == 0) return _first.next;
return null;
}
int nPos = _count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = _count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = indexOfNote(nPos);
int iCom = item.compareTo(ld.data);
if (iCom > 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (iCom < 0)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return ld;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case s_min_max:
{
if (_count == 0)
{
return null;
}
if (_count == 1)
{
return _first.data.compareTo(item) == 0 ? _first : null;
}
if (_count == 2)
{
if (_first.data.compareTo(item) == 0) return _first;
if (_first.next.data.compareTo(item) == 0) return _first.next;
return null;
}
int nPos = _count / 2; //nPos在中间，所以无素一定要大于等于3才行
int nLeft = 0; //左边远素
int nRight = _count - 1; //右边远素
DListNote_<T> ld = null;
while (nRight >= 0 && nLeft >= 0)
{
ld = indexOfNote(nPos);
int iCom = item.compareTo(ld.data);
if (iCom < 0)
{
if (nRight == nLeft || nPos == nLeft)
{
return null;
}
nRight = nPos - 1;
}
else if (iCom > 0)
{
if (nRight == nLeft || nPos == nRight)
{
return null;
}
nLeft = nPos + 1;
}
else
{
return ld;
}
nPos = nLeft + (nRight - nLeft + 1) / 2;
}
break;
}
case s_null:
{
DListNote_<T> pNote = _first;
while (pNote != null)
{
//总结:Equals比较的永远是变量的内容是否相同，而= =比较的则是引用地址是否相同(前提:此种类型内部没有对Equals 或= = 进行重写操作，
//否则输出可能会有不同)。string 类型是个特例，因为他的内部对这两个都进行了重写。
if (item.compareTo(pNote.data) == 0)
{
return pNote;
}
/*
if (pNote.data.Equals(item))
{
return pNote;
}
*/
pNote = pNote.next;
}
break;
}
default:
{
return null;
}
}
return null;
}
/**
* Move last boolean.
*
* @param iIndex the index
* @return the boolean
*/
/// <summary>
/// 把索引为nIndex的节点移到最后
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
protected boolean moveLast(int iIndex)
{
DListNote_ pNote = indexOfNote(iIndex);
if (pNote != null)
{
if (pNote == _last)
return true;
if (pNote == _first) //此时最少两个节点
{
_first = _first.next;
_first.prev = null;
_last.next = pNote;
pNote.prev = _last;
_last = pNote;
}
else
{
pNote.prev.next = pNote.next;
pNote.next.prev = pNote.prev;
_last.next = pNote;
pNote.prev = _last;
_last = pNote;
}
return true;
}
return false;
}
/**
* Move first boolean.
*
* @param iIndex the index
* @return the boolean
*/
/// <summary>
/// 把索引为nIndex的节点移到最前
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
protected boolean moveFirst(int iIndex)
{
DListNote_ pNote = indexOfNote(iIndex);
if (pNote != null)
{
if (pNote == _first)
return true;
if (pNote == _last) //此时最少两个节点
{
_last.prev.next = null;
_last = _last.prev;
pNote.prev = null;
pNote.next = _first;
_first.prev = pNote;
_first = pNote;
}
else
{
pNote.prev.next = pNote.next;
pNote.next.prev = pNote.prev;
pNote.next = _first;
_first.prev = pNote;
pNote.prev = null;
_first = pNote;
}
return true;
}
return false;
}
/**
* Remove item boolean.
*
* @param pData the p data
* @return the boolean
*/
/// <summary>
/// 删除链表中的数据
/// </summary>
/// <param name="pData"></param>
/// <returns></returns>
public boolean RemoveItem(T pData)
{
if (_sortord == Sortord_.s_null)
{
DListNote_ pListItem = _first;
while (pListItem != null)
{
if (pListItem.data.equals(pData)) //找到一项
{
if (pListItem == _first) //删除的是第一个节点
{
if (_first.next != null)
{
_first.next.prev = null;
_first = _first.next;
}
else
{
_first = null;
_last = null;
}
}
else if (pListItem == _last) //删除的是最后一个节点
{
if (_last.prev != null)
{
_last.prev.next = null;
_last = _last.prev;
}
else
{
_first = null;
_last = null;
}
}
else //删除的是中间的一个节点
{
pListItem.next.prev = pListItem.prev;
pListItem.prev.next = pListItem.next;
}
--_count;
return true;
}
pListItem = pListItem.next;
}
return false;
}
else
{
return removeAt(bnarySearch(pData));
}
}
/**
* Delete node boolean.
*
* @param pListItem the p list item
* @return the boolean
*/
/// <summary>
/// 删除链表中的节点
/// </summary>
/// <param name="pListItem"></param>
/// <returns></returns>
protected boolean deleteNode(DListNote_ pListItem)
{
if (_count == 0 || pListItem == null)
{
return false;
}
DListNote_ pNote = _first.next;
while (pNote != null)
{
if (pNote == pListItem) //找到了
{
//pListItem->prev
if (pListItem.prev != null)
{
pListItem.prev.next = pListItem.next;
}
else //删除的是第一个节点
{
_first = pListItem.next;
}
//pListItem->next
if (pListItem.next != null)
{
pListItem.next.prev = pListItem.prev;
}
else //删除的是最后一个节点
{
_last = pListItem.prev;
}
break;
}
pNote = pNote.next;
}
if (pNote != null)
{
--_count;
return true;
}
return false;
}
/**
* 功能：清空所有元素的所有数据，并清空链表
* 创建时间：????/??/??
* 最后一次修改时间：2022-07-02
*/
public void clear(){
_count = 0;
DListNote_ pTemp1 = _first;
while (pTemp1 != null){
DListNote_ pTemp2 = pTemp1.next;
pTemp1.data = null;
pTemp1.next = null;
pTemp1.prev = null;
pTemp1 = pTemp2;
}
_first = null;
_last = null;
}
/**
* Remove at boolean.
*
* @param iIndex the index
* @return the boolean
*/
/// <summary>
/// 移除指定索引处的元素
/// </summary>
/// <param name="iIndex">要移除的元素的从零开始的索引。</param>
/// <returns>成功返回true,否则返回false</returns>
public Boolean removeAt(int iIndex)
{
if (iIndex < 0 || iIndex + 1 > _count) { return false; }
DListNote_ pNode = _first;
int iCount = 0;
while (pNode != null)
{
if (iCount == iIndex)
{
if (pNode == _first)
{
if (_first.next == null) //只有一个
{
clear();
return true;
}
else
{
_first = _first.next;
_first.prev = null;
--_count;
return true;
}
}
else if (pNode == _last)
{
if (_last.prev == null)
{
clear();
return true;
}
else
{
_last = _last.prev;
_last.next = null;
--_count;
return true;
}
}
else
{
pNode.prev.next = pNode.next;
pNode.next.prev = pNode.prev;
pNode = null;
--_count;
return true;
}
}
pNode = pNode.next;
++iCount;
}
return false;
}
/**
* Printlf.
*/
public void printlf(){
jp.p(toString());
}
/**
* 功能：删除一段链表，注意：pDeleteNoteStart 一定要在链表内。
*
* @param pDeleteNoteStart 开始删除的位置
* @param bDown 删除方向，向下还是向上，prev 为向上，next 为向上
* @param nCount 要删除的个数，包括 pDeleteNoteStart
* @return 返回实际删除的个数 作者：李锋 创建时间：2022/07/02 最后一次修改时间：2022/07/02
*/
public int removeNotes(DListNote_ pDeleteNoteStart,boolean bDown,int nCount){
if(_count <= 0 || nCount <= 0 || pDeleteNoteStart == null ) return 0;
if(pDeleteNoteStart == _first){ //如果删除的开始位置是链表中的第一个节点
if( bDown ){ //向下
int n = 0;
DListNote_ pTemp = _first;
//计数
while(pTemp != null){
++ n;
pTemp.data = null;
pTemp = pTemp.next;
if( n == nCount) break;
}
if(pTemp == null){
clear();
return _count;
}
else { //重新设置 _first
pTemp.prev = null;
_first = pTemp;
_count -= nCount;
return nCount;
}
}
else{ //向上，只删除一个,重新设置 _first
if(_count == 1){
clear();
}else{
-- _count;
_first.data = null;
DListNote_ pTemp = _first.next;
pTemp.prev = null;
_first = pTemp;
}
return 1;
}
}else if(pDeleteNoteStart == _last){ //如果删除的开始位置是链表中的最后一个节点
if( bDown ){ //向下,只删除一个,重新设置 _last
if(_count == 1){
clear();
}else{
-- _count;
_last.data = null;
DListNote_ pTemp = _last.prev;
pTemp.next = null;
_last = pTemp;
}
return 1;
}
else{ //向上
int n = 0;
DListNote_ pTemp = _last;
//计数
while(pTemp != null){
++ n;
pTemp.data = null;
pTemp = pTemp.prev;
if( n == nCount) break;
}
if(pTemp == null){
clear();
return _count;
}
else { //重新设置 _last
pTemp.next = null;
_last = pTemp;
_count -= nCount;
return nCount;
}
}
}else{
if( bDown ){
int n = 0;
DListNote_ pTemp = pDeleteNoteStart;
//计数
while(pTemp != null){
++ n;
pTemp.data = null;
pTemp = pTemp.next;
if( n == nCount) break;
}
if(pTemp == null) //_last也删掉了
{
pDeleteNoteStart.prev.next = null;
_last = pDeleteNoteStart.prev;
_count -= n;
return n; //实际删除个数
}
else {
pDeleteNoteStart.prev.next = pTemp;
pTemp.prev = pDeleteNoteStart.prev;
_count -= nCount;
return nCount;
}
}
else
{
int n = 0;
DListNote_ pTemp = pDeleteNoteStart;
//计数
while(pTemp != null){
++ n;
pTemp.data = null;
pTemp = pTemp.prev;
if( n == nCount) break;
}
if(pTemp == null) { //_first 也删掉了
pDeleteNoteStart.next.prev = null;
_first = pDeleteNoteStart.next;
_count -= n;
return n; //实际删除个数
}
else {
pTemp.next = pDeleteNoteStart.next;
pDeleteNoteStart.next.prev = pTemp;
_count -= nCount;
return nCount;
}
}
}
}
/**
* 添加一个元素，并把它放在首位，其它元素后移,如果后面的元素删除，总无素个数不变，如果无素个数为零，则添加一个无素。
*
* @param Item the item
* @param bRemoveLast 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
*/
public void stackPush(T Item, boolean bRemoveLast){
if (_count == 0){
add(Item);
}
else if (_count == 1){
if (bRemoveLast){
_first.data = Item;
}
else{
//把无素放在最前
DListNote_ dnNew = new DListNote_(Item);
_first.prev = dnNew;
dnNew.next = _first;
_first = dnNew;
++_count;
}
}
else{
if (bRemoveLast){
//删除最后一个元素
_last = _last.prev;
_last.next = null;
//把无素放在最前
DListNote_ dnNew = new DListNote_(Item);
_first.prev = dnNew;
dnNew.next = _first;
dnNew.prev = null;
_first = dnNew;
}
else {
//把无素放在最前
DListNote_ dnNew = new DListNote_(Item);
_first.prev = dnNew;
dnNew.next = _first;
dnNew.prev = null;
_first = dnNew;
++_count;
}
}
}
/**
* Stack pop.
*/
/// <summary>
/// 删除第一个元素，出栈
/// </summary>
/// 创建时间： 2022-04-19 最后一次修改时间：2022-04-19
public void stackPop(){ removeAt(0); }
/**
* To array list array list.
*
* @return the array list
*/
public ArrayList<T> toArrayList(){
ArrayList<T> la = new ArrayList<T>();
for(T value : this){
la.add(value);
}
return la;
}
/**
* 功能: 转为字符串格式 类名：{ a 分隔符 b 分隔符 c }
*
* @param separator 分隔符
* @return string
* @author 李锋
* @since 创建日期 :2022-08-08,最后一次修改日期:2022-08-08
*/
public String toString(String sConnector){
String info = this.getClass() + " :\t";
//info += "{";
int i = 0;
for ( T t : this) {
info += t.toString();
++ i ;
if( i != _count)
info += sConnector;
}
//info += "}";
return info;
}
/**
* 功能: 转为字符串格式 类名：{ a , b , c }
* @return
* @since 创建日期:2022-08-08,最后一次修改日期:2022-08-08
* @author 李锋
*/
@Override
public String toString() {
return toString(",");
}
}
class DListNoteEnum_<T> implements Iterator<T> {
private DListNote_<T> _dnCurr;
private int _index = -1;
public DListNoteEnum_(DListNote_<T> dn){
_dnCurr = dn;
}
@Override
public boolean hasNext() {
return _dnCurr.next != null;
}
@Override
public T next() {
++ _index;
if( _index > 0){
_dnCurr = _dnCurr.next;
}
return _dnCurr.data;
}
}