排序算法是编程的基础。
常见的四种排序算法是：简单选择排序、冒泡排序、插入排序和快速排序。其中的快速排序的优势明显，一般使用递归方式实现，但遇到数据量大的情况则无法适用。实际工程中一般使用"非递归"方式实现。本文搜集发布四种算法的源代码及非递归快速排序的代码。
简单选择排序(Simple Select Sort)算法
算法思路：从左到右，以第一个元素作为基准数与后面的数作比较，找到比它小的数就交换。以此类推。直至循环结束。
代码改编自：C#实现常见排序算法_菜园赤子的博客-CSDN博客_c#排序算法
代码：
using System;
using System.Text;
using System.Collections.Generic;
using System.Windows.Forms;
namespace WindowsFormsApp6
{
public partial class Form1 : Form
{
Random rnd = new Random((int)DateTime.Now.Ticks);
List<string> slides = new List<string>();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.Text = "C#，四种常见排序算法的可视化编程------北京联高软件开发有限公司";
button1.Text = "选择排序"; button1.Cursor = Cursors.Hand;
button2.Text = "冒泡排序"; button2.Cursor = Cursors.Hand;
button3.Text = "插入排序"; button3.Cursor = Cursors.Hand;
button4.Text = "快速(递归)"; button4.Cursor = Cursors.Hand;
button5.Text = "快速(非递归)"; button5.Cursor = Cursors.Hand;
panel1.Dock = DockStyle.Top;
panel2.Dock = DockStyle.Fill;
webBrowser1.Navigate("http://www.315soft.com");
}
private int\[\] RandArray()
{
int n = 20;
int\[\] dataArray = new intn;
for (int i = 0; i < n; i++)
{
dataArrayi = rnd.Next(20, 100);
}
return dataArray;
}
private void button1_Click(object sender, EventArgs e)
{
slides.Clear();
SelectionSort(RandArray());
loop = 0;
timer1.Interval = 100;
timer1.Enabled = true;
}
/// <summary>
/// 选择排序
/// 改编自：https://blog.csdn.net/qq_36238093/article/details/97051032
/// </summary>
/// <param name="dataArray"></param>
public void SelectionSort(int\[\] dataArray)
{
for (int i = 0; i < dataArray.Length - 1; i++)
{
for (int j = i + 1; j < dataArray.Length; j++)
{
if (dataArrayi > dataArrayj)
{
int temp = dataArrayi;
dataArrayi = dataArrayj;
dataArrayj = temp;
slides.Add(Slide(button1.Text, dataArray, i, j));
}
}
}
}
private string Slide(string title, int\[\] dataArray, int a, int b)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\\"\>");
sb.AppendLine("<html xmlns=\"http://www.w3.org/1999/xhtml\\" >");
sb.AppendLine("<head>");
sb.AppendLine("<style>");
sb.AppendLine("td { vertical-align:bottom;text-align:center;font-size:12px; } ");
sb.AppendLine(".bar { width:" + (int)((webBrowser1.Width - dataArray.Length * 11) / dataArray.Length) + "px;font-size:12px;border:solid 1px #FF6701;background-color:#F08080;text-align:center;border-radius:3px; }");
sb.AppendLine("</style>");
sb.AppendLine("</head>");
sb.AppendLine("<body>");
sb.AppendLine("<table width='100%' style='border-bottom:solid 1px #E9E9E0;'>");
sb.AppendLine("<tr>");
sb.AppendLine("<td>方法：" + title + "</td>");
sb.AppendLine("<td>数据：" + dataArray.Length + "</td>");
sb.AppendLine("<td>步骤：0</td>");
sb.AppendLine("</tr>");
sb.AppendLine("</table>");
sb.AppendLine("<br>");
sb.AppendLine("<table width='100%' style='border-bottom:solid 15px #E9E9E0;'>");
sb.AppendLine("<tr>");
for (int i = 0; i < dataArray.Length; i++)
{
if (i == a || i == b)
{
sb.AppendLine("<td>" + dataArrayi + "<div class='bar' style='height:" + dataArrayi*3 + "px;background-color:#993333;'></div></td>");
}
else
{
sb.AppendLine("<td>" + dataArrayi + "<div class='bar' style='height:" + dataArrayi*3 + "px;'></div></td>");
}
}
sb.AppendLine("</tr>");
sb.AppendLine("</table>");
sb.AppendLine("</body>");
sb.AppendLine("</html>");
return sb.ToString();
}
int loop = 0;
private void timer1_Tick(object sender, EventArgs e)
{
if (loop < slides.Count + (3000 / timer1.Interval))
{
if (loop < slides.Count)
{
webBrowser1.DocumentText = slidesloop.Replace("0", loop + " / " + slides.Count);
loop++;
return;
}
loop++;
return;
}
loop = 0;
}
}
}
可下载五种排序算法源代码：
五种排序算法源代码
https://download.csdn.net/download/beijinghorn/85076171