using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.IO;
using?System.Windows.Forms;

namespace?Combine
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????public?int[]?a;
????????public?string?Result;
????????private?long?T1;
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????
??????
????????????int?M?=?Convert.ToInt32（this.textBox1.Text）;
????????????int?N?=?Convert.ToInt32（this.textBox2.Text）;
????????????a?=?new?int[N+1];???????????
????????????a[0]=N;
????????????Result?=?““;
????????????this.combine（M?N）;????????????
????????????this.richTextBox1.Text?=?Result;?????????
???????????
????????????
????????}
????????private?void?combine（int?m?int?k）
????????{
????????????//計算組合在m里面選k個元素的全部組合情況，添加到字典對象里???????????
????????????for?（int?i?=?m;?i?>?k;?i--）
????????????{
????????????????a[k]?=?i;
????????????????if?（k?>?1）
????????????????{
????????????????????combine（i?-?1?k?-?1）;
????????????????}
????????????????else
????????????????{
????????????????????for?（int?j?=?1;?j?<=?a[0];?j++）
????????????????????{
????????????????????????Result?+=?a[j]?+?““;
????????????????????}
????????????????????Result?+=?“\r\n“;
????????????????}
????????????}
????????}

????????private?void?combine2（int?m?int?k）
????????{
????????????//計算組合在m里面選k個元素的全部組合情況，添加到字典對象里???????????
????????????for?（int?i?=?m;?i?>?k;?i--）
????????????{
????????????????a[k]?=?i;
????????????????if?（k?>?1）
????????????????{
????????????????????combine（i?-?1?k?-?1）;
????????????????}
????????????????else
????????????????{????????????????????
????????????????????for?（int?j?=?1;?j?<=?a[0];?j++）
????????????????????{
????????????????????????Result?+=?a[j]?+?““;???????????????????????
????????????????????}
????????????????????Result?+=?“\r\n“;
????????????????}????????????????
????????????}
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????//MessageBox.Show（System.DateTime.Now.Ticks.ToString（）?）;
????????????//T1?=?System.DateTime.Now.Ticks;
????????????//timer1.Start（）;
????????????//MessageBox.Show（TimeSpan.FromSeconds（1）.Ticks.ToString（））;
???????????MessageBox.Show（Encoding.Default.EncodingName）;
????????}

????????private?void?timer1_Tick（object?sender?EventArgs?e）
????????{
????????????this.richTextBox1.Text?+=?（System.DateTime.Now.Ticks?-?T1）.ToString（）?+?“\r\n“;?
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????9728??2007-09-10?18:25??Combine\Combine\bin\Debug\Combine.exe

?????文件??????24064??2007-09-10?18:25??Combine\Combine\bin\Debug\Combine.pdb

?????文件??????15704??2007-09-10?18:25??Combine\Combine\bin\Debug\Combine.vshost.exe

?????文件????????473??2007-02-21?18:51??Combine\Combine\bin\Debug\Combine.vshost.exe.manifest

?????文件???????3339??2007-08-29?18:28??Combine\Combine\Combine.csproj

?????文件???????2747??2007-09-10?18:25??Combine\Combine\Form1.cs

?????文件???????4039??2007-08-31?13:11??Combine\Combine\Form1.Designer.cs

?????文件???????6008??2007-08-31?13:11??Combine\Combine\Form1.resx

?????文件????????420??2007-09-10?18:25??Combine\Combine\obj\Debug\Combine.csproj.FileListAbsolute.txt

?????文件????????847??2007-08-31?13:12??Combine\Combine\obj\Debug\Combine.csproj.GenerateResource.Cache

?????文件???????9728??2007-09-10?18:25??Combine\Combine\obj\Debug\Combine.exe

?????文件????????180??2007-08-31?13:12??Combine\Combine\obj\Debug\Combine.Form1.resources

?????文件??????24064??2007-09-10?18:25??Combine\Combine\obj\Debug\Combine.pdb

?????文件????????180??2007-08-29?18:28??Combine\Combine\obj\Debug\Combine.Properties.Resources.resources

?????文件????????479??2007-08-29?18:27??Combine\Combine\Program.cs

?????文件???????1434??2007-08-29?18:27??Combine\Combine\Properties\AssemblyInfo.cs

?????文件???????2843??2007-08-29?18:27??Combine\Combine\Properties\Resources.Designer.cs

?????文件???????5612??2007-08-29?18:27??Combine\Combine\Properties\Resources.resx

?????文件???????1092??2007-08-29?18:27??Combine\Combine\Properties\Settings.Designer.cs

?????文件????????249??2007-08-29?18:27??Combine\Combine\Properties\Settings.settings

?????文件????????921??2007-08-29?18:27??Combine\Combine.sln

????..A..H.?????12288??2007-09-11?12:15??Combine\Combine.suo

?????目錄??????????0??2007-08-29?18:27??Combine\Combine\obj\Debug\TempPE

?????目錄??????????0??2007-08-29?18:29??Combine\Combine\bin\Debug

?????目錄??????????0??2007-09-10?18:25??Combine\Combine\obj\Debug

?????目錄??????????0??2007-08-29?18:27??Combine\Combine\bin

?????目錄??????????0??2007-08-29?18:27??Combine\Combine\obj

?????目錄??????????0??2007-08-29?18:27??Combine\Combine\Properties

?????目錄??????????0??2007-09-10?18:25??Combine\Combine

?????目錄??????????0??2007-08-29?18:27??Combine

............此處省略3個文件信息