using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;
using?System.Net;
using?System.Net.Sockets;
using?System.Threading;


namespace?Client_客戶端
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????Socket?mySocket_用于連接發送;
????????Socket?mySocket_接收;
????????IPAddress?Broadcast;
????????IPEndPoint?ep;
????????UdpClient?myUdpClient;
????????Socket?mycij;
????????string??自己ID;
????????void?Add（string?a）
????????{
????????????txt1.AppendText（a+“\r\n“）;
????????????txt1.ScrollToCaret（）;
????????}
????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{

??????????
????????}
????????string??提取（byte[]?mybyteref?int?ID）
????????{
????????????int?k?=?0;
????????????for?（int?i?=?0;?i?????????????{
????????????????if?（mybyte[i]?==?64）
????????????????{
????????????????????k?=?i;
????????????????????break;
????????????????}
????????????}
????????????string?str?=?Encoding.ASCII.GetString（mybyte?0?k）;
????????????ID?=?Convert.ToInt32（str）;
????????????string?s?=?Encoding.ASCII.GetString（mybytek+1?mybyte.Length-k-1）;
????????????return?s;
????????}
????????void?Send（）
????????{
????????????try
????????????{
????????????????Byte[]?sendbuf?=?Encoding.GetEncoding（“gb2312“）.GetBytes（“1“+自己ID.ToString（）+“@“+txt2.Text.Trim（）.ToString（））;
????????????????mySocket_用于連接發送.SendTo（sendbuf?ep）;
????????????}catch（Exception?e）
????????????{
????????????????Add（e.ToString（））;
????????????}
???????????
???????????
????????}
????????void?接收數據（）
????????{
????????????do
????????????{
????????????????try
????????????????{
????????????????????byte[]?b?=?new?byte[100];
????????????????????int?長度=?mySocket_接收.Receive（b）;
????????????????????string?str?=?Encoding.UTF8.GetString（b0?長度）;
????????????????????string???ID?=?““;
????????????????????string?消息?=?提取（str?ref?ID）;
??????????????????
????????????????????if?（消息?==?“0“）
????????????????????{
????????????????????????if（ID?==?自己ID）
????????????????????????{
????????????????????????????Add（“接入成功“）;
????????????????????????}
????????????????????????else
????????????????????????{
????????????????????????????Add（ID?+?“進入房間“）;
????????????????????????}
????????????????????}
????????????????????else?{?if（ID?==?自己ID）
????????????????????????{
????????????????????????????Add（?“我說：“?+?消息）;
????????????????????????}
????????????????????????else
????????????????????????{
????????????????????????????Add（ID?+?“說：“?+?消息）;
????????????????????????}
?????????????????????????????}
????????????????????
????????????????}
????????????????catch
????????????????{

????????????????}


????????????}?while?（true）;
????????}
????????private?void?button1_Click（object?sende

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\.vs\
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\.vs\Client-客戶端\
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\.vs\Client-客戶端\v14\
?????文件???????34816??2017-07-19?15:05??Client-客戶端\.vs\Client-客戶端\v14\.suo
?????目錄???????????0??2017-05-22?08:16??Client-客戶端\Client-客戶端\
?????文件????????1015??2016-04-18?12:47??Client-客戶端\Client-客戶端.sln
?????文件?????????184??2017-05-22?08:15??Client-客戶端\Client-客戶端\App.config
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\Client-客戶端\bin\
?????目錄???????????0??2017-05-22?08:13??Client-客戶端\Client-客戶端\bin\Debug\
?????文件???????12800??2017-05-22?08:16??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.exe
?????文件?????????184??2017-05-22?08:15??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.exe.config
?????文件???????26112??2017-05-22?08:16??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.pdb
?????文件???????22688??2017-07-19?15:04??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.vshost.exe
?????文件?????????184??2017-05-22?08:15??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.vshost.exe.config
?????文件?????????490??2017-03-19?05:00??Client-客戶端\Client-客戶端\bin\Debug\Client-客戶端.vshost.exe.manifest
?????目錄???????????0??2016-04-18?12:47??Client-客戶端\Client-客戶端\bin\Release\
?????文件????????3997??2017-05-22?08:15??Client-客戶端\Client-客戶端\Client-客戶端.csproj
?????文件????????5817??2017-05-22?08:16??Client-客戶端\Client-客戶端\Form1.cs
?????文件????????8463??2016-06-09?12:49??Client-客戶端\Client-客戶端\Form1.Designer.cs
?????文件????????5817??2016-06-09?12:49??Client-客戶端\Client-客戶端\Form1.resx
?????目錄???????????0??2016-08-03?10:18??Client-客戶端\Client-客戶端\obj\
?????目錄???????????0??2017-05-22?08:15??Client-客戶端\Client-客戶端\obj\Debug\
?????文件????????2496??2017-07-19?15:04??Client-客戶端\Client-客戶端\obj\Debug\Client-客戶端.csproj.FileListAbsolute.txt
?????文件?????????976??2017-05-22?08:13??Client-客戶端\Client-客戶端\obj\Debug\Client-客戶端.csproj.GenerateResource.Cache
?????文件????????8563??2017-05-22?08:15??Client-客戶端\Client-客戶端\obj\Debug\Client-客戶端.csprojResolveAssemblyReference.cache
?????文件???????12800??2017-05-22?08:16??Client-客戶端\Client-客戶端\obj\Debug\Client-客戶端.exe
?????文件???????26112??2017-05-22?08:16??Client-客戶端\Client-客戶端\obj\Debug\Client-客戶端.pdb
?????文件?????????180??2017-05-22?08:15??Client-客戶端\Client-客戶端\obj\Debug\Client_客戶端.Form1.resources
?????文件?????????180??2017-05-22?08:15??Client-客戶端\Client-客戶端\obj\Debug\Client_客戶端.Properties.Resources.resources
?????文件????????1760??2017-05-22?08:15??Client-客戶端\Client-客戶端\obj\Debug\DesignTimeResolveAssemblyReferences.cache
............此處省略66個文件信息