1.主函数
cpp
#include<iostream>
#include<string>
#include<speechManager.h>
using namespace std;
int main()
{
SpeechManager sm;
int choice = 0;
while(true)
{
sm.show_Menu();
cout << "请输入您的选择:" << endl;
cin >> choice;
switch(choice)
{
case 1:
sm.SpeechDraw();
break;
case 2:
break;
case 3:
break;
case 0:
sm.exitSystem();
break;
default:
system("cls");
break;
}
}
system("pause");
return 0;
}
2.创建演讲比赛流程管理类
SpeechManager.h中写声明:
cpp
#pragma once
#include<iostream>
using namespace std;
class SpeechManager
{
public:
SpeechManager();
~SpeechManager();
};
SpeechManager.cpp中写实现:
cpp
#include<speechManager.h>
SpeechManager::SpeechManager()
{
}
SpeechManager::~SpeechManager()
{
}
3.菜单界面
在SpeechManager.h中写声明:
cpp
void show_Menu();
SpeechManager.cpp中写实现:
cpp
void SpeechManager::show_Menu()
{
cout << "********************************" << endl;
cout << "******欢迎参加演讲比赛**********" << endl;
cout << "******1.开始演讲比赛************" << endl;
cout << "******2.查看往届记录************" << endl;
cout << "******3.清空比赛记录************" << endl;
cout << "******0.退出比赛程序************" << endl;
cout << "********************************" << endl;
}
4.选择为0时退出系统
在Speaker.h中写声明。
cpp
void exitSystem();
SpeechManager.cpp中写实现:
cpp
void SpeechManager::exitSystem()
{
cout << "欢迎下次使用" << endl;
system("pause");
exit(0);
}
5.创建选手类
在Speaker.h中写声明。一个属性是姓名,另一个属性是存放两轮得分的数组:
cpp
#pragma once
#include<iostream>
using namespace std;
class Speaker
{
public:
Speaker();
string m_name;
double m_score[2]; // 最多有两轮得分
};
6.比赛开始前:随机进行抽签
在SpeechManager.h中写声明。建立三个数组,v1存放第一轮选手的编号,v2存放第二轮选手的编号,v存放获胜的前三名编号。以及创建对组map<int, Speaker> m_Speaker存放编号和对应的选手。
cpp
vector<int> v1; // 保存第一轮选手编号
vector<int> v2; // 第一轮晋级选手编号
vector<int> v; // 前三名选手编号
map<int, Speaker> m_Speaker; // 存放编号以及对应具体选手
int m_Index; // 比赛轮数
void initSpeech(); // 初始化
void createSpeaker(); // 创建十二名选手
void SpeechDraw(); // 抽签
cpp
void SpeechManager::initSpeech()
{
// 容器都置空
this->v1.clear();
this->v2.clear();
this->v.clear();
this->m_Speaker.clear();
this->m_Index = 1;
}
cpp
void SpeechManager::createSpeaker()
{
string nameSeed = "ABCDEFGHIJKL";
for(int i=0; i<nameSeed.size(); i++)
{
string name = "选手";
name += nameSeed[i];
Speaker sp;
sp.m_name = name;
for(int j=0; j<2; j++)
{
sp.m_score[j] = 0;
}
// 将选手编号添加到v1容器中
this->v1.push_back(i+10001);
// 将编号以及演讲者添加到map容器中
this->m_Speaker.insert(make_pair(i+10001, sp));
}
}
将初始化和创造12名选手的函数添加到构造函数中:
cpp
SpeechManager::SpeechManager()
{
this->initSpeech(); // 初始化
this->createSpeaker(); // 创建十二名选手
}
进行抽签。在Speaker.h中写声明。:
cpp
#include<algorithm>
void SpeechDraw(); // 抽签
SpeechManager.cpp中写实现。如果是第一轮,用v1。如果是第二轮,用v2:
cpp
void SpeechManager::SpeechDraw()
{
cout << "第" << this->m_Index << "轮开始抽签" << endl;
vector<int> v_Src;
if(this->m_Index == 1)
{
v_Src = v1;
}
else
{
v_Src = v2;
}
random_shuffle(v_Src.begin(), v_Src.end());
cout << "随机抽签的顺序如下:" << endl;
for(vector<int>::iterator it=v_Src.begin(); it != v_Src.end(); it++)
{
cout << *it << " ";
}
cout << endl;
cout << "------------------------" << endl;
system("pause");
cout << endl;
}
7.比赛开始
cpp
void SpeechManager::speechContest()
{
cout << "-----------第 " << this->m_Index << " 轮比赛开始---------" << endl;
// 准备临时容器,存放小组成绩
multimap<double, int, greater<double>> groupScore;
int num = 0; // 用于记录人员个数 6人一组
vector<int> v_Src; // 比赛选手容器
if(this->m_Index == 1)
{
v_Src = v1;
}
else
{
v_Src = v2;
}
for(vector<int>::iterator it=v_Src.begin(); it!=v_Src.end(); it++)
{
num++;
// 评委打分
deque<double> q;
for(int i=0; i<10; i++)
{
double score = (rand() % 401 + 600) / 10.f; // 600~1000
// cout << score << " ";
q.push_back(score);
}
// cout << endl;
sort(q.begin(), q.end(), greater<double>());
q.pop_front(); // 去除最高分
q.pop_back(); // 去除最低分
double sum = accumulate(q.begin(), q.end(), 0.0f);
double avg = sum / (double)q.size();
// cout << "编号:" << *it << " 选手姓名:" << this->m_Speaker[*it].m_name << " 均分:" << avg << endl;
// 将平均分放入map容器, *it为选手编号
this->m_Speaker[*it].m_score[this->m_Index-1] = avg;
groupScore.insert(make_pair(avg, *it)); // key是得分,value是具体选手的编号
// 每6人取出前三名
if(num % 6 == 0)
{
cout << "第" << num / 6 << "小组比赛名次如下:" << endl;
for(multimap<double, int, greater<double>>::iterator it=groupScore.begin(); it!=groupScore.end(); it++)
{
cout << "编号:" << it->second
<< " 姓名:" << this->m_Speaker[it->second].m_name
<< " 成绩:" << this->m_Speaker[it->second].m_score[this->m_Index-1]
<< endl;
}
// 取走前三名
int count = 0;
for(multimap<double, int, greater<double>>::iterator it=groupScore.begin(); it!=groupScore.end() && count < 3; it++, count++)
{
if(this->m_Index == 1)
{
v2.push_back((*it).second);
}
else
{
v.push_back((*it).second);
}
}
groupScore.clear();
cout << endl;
}
}
cout << "------------第" << this->m_Index << "轮比赛完毕----------";
cout << endl;
system("pause");
}
8.比赛结束后:展示晋级结果
cpp
void speechManager::showScore()
{
cout << "第" << this->m_Index << "轮比赛晋级选手如下:" << endl;
vector<int> v_Src;
if(this->m_Index == 1)
{
v_Src = v2;
}
else
{
v_Src = v;
}
for(vector<int>::iterator it=v_Src.begin(); it!=v_Src.end(); it++)
{
cout << "选手编号:" << *it
<< " 选手姓名:" << this->m_Speaker[*it].m_name
<< " 成绩:" << this->m_Speaker[*it].m_score[this->m_Index-1]
<< endl;
}
cout << endl;
system("pause");
system("cls");
this->show_menu();
}
9.整个比赛流程:
抽签->开始比赛->展示比赛结果->展示晋级结果
cpp
void speechManager::startSpeech()
{
// 第一轮比赛
// 1.抽签
this->SpeechDraw();
// 2.比赛
this->speechContest();
// 3.显示晋级结果
this->showScore();
// 第二轮比赛
this->m_Index++;
// 1.抽签
this->SpeechDraw();
// 2.比赛
this->speechContest();
// 3.显示晋级结果
this->showScore();
// 保存分数到文件中
this->saveRecord();
}
比赛结束后需要重置比赛:
cpp
// 重置比赛,获取记录
this->initSpeech();
this->createSpeaker();
this->loadRecord(); // 加载往届记录
cout << "本届比赛完毕!" << endl;
system("pause");
system("cls");
9.保存比赛记录
将比赛记录保存在"speech.csv"文件中。同时设置一个变量fileIsEmpty,记录文件是否为空,便于后续读取的条件判断。
cpp
void speechManager::saveRecord()
{
ofstream ofs;
ofs.open("speech.csv", ios::out | ios::app); // 以追加的方式写文件
for(vector<int>::iterator it=v.begin(); it != v.end(); it++)
{
ofs << *it << "," << this->m_Speaker[*it].m_score[1] << ",";
}
ofs << endl;
ofs.close();
cout << "记录已经保存" << endl;
this->fileIsEmpty = false;
}
10.加载往届记录
在SpeechManager.h中写声明:
cpp
void loadRecord();
bool fileIsEmpty; // 文件是否为空
map<int, vector<string>> m_Record; // 存放往届记录的容器
在SpeechManager.cpp中写实现。将读取的记录都存放在m_Record:
cpp
void speechManager::loadRecord()
{
ifstream ifs("speech.csv", ios::in); // 读文件
if(!ifs.is_open())
{
this->fileIsEmpty = true;
cout << "文件不存在" << endl;
ifs.close();
return;
}
// 文件清空
char ch;
ifs >> ch;
if(ifs.eof())
{
cout << "文件为空" << endl;
ifs.close();
return;
}
// 文件不为空
this->fileIsEmpty = false;
ifs.putback(ch); // 将上面读取的单个字符放回来
string data;
int index = 0;
while(ifs >> data)
{
vector<string> v_Src;
int pos = -1; // 查到逗号的位置
int start_pos = 0;
while(true)
{
pos = data.find(",", start_pos);
if(pos == -1)
{
// 没找到
break;
}
string temp = data.substr(start_pos, pos-start_pos);
v_Src.push_back(temp);
start_pos = pos + 1;
}
this->m_Record.insert(make_pair(index, v_Src));
index++;
}
ifs.close();
//for(map<int, vector<string>>::iterator it=m_Record.begin(); it!=m_Record.end(); it++)
//{
//cout << "第" << it->first+1 << "届" << " 冠军编号:" << it->second[0] << " 分数:" << it->second[1] << endl;
//}
}
11.展示往届记录
cpp
void speechManager::showRecord()
{
if(this->fileIsEmpty)
{
cout << "文件不存在,记录为空" << endl;
}
else
{
for(int i=0; i<this->m_Record.size(); i++)
{
cout << "第" << i+1 << "届" << " "
<< "冠军编号:" << this->m_Record[i][0] << " 得分:" << this->m_Record[i][1] << " "
<< "亚军编号:" << this->m_Record[i][2] << " 得分:" << this->m_Record[i][3] << " "
<< "季军编号:" << this->m_Record[i][4] << " 得分:" << this->m_Record[i][5] << endl;
}
}
system("pause");
system("cls");
}
12.清空记录
cpp
void speechManager::emptyRecord()
{
cout << "确认清空吗?" << endl;
cout << "1.确认 2.返回" << endl;
int select = 0;
cin >> select;
if(select == 1)
{
ofstream ofs("speech.csv", ios::trunc);
ofs.close();
this->initSpeech();
this->createSpeaker();
this->loadRecord();
cout << "清空成功" << endl;
}
system("pause");
system("cls");
}