SyncChatClient/MainForm.cs

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

namespace SyncChatClient
{
    public partial class MainForm : Form
    {
        private string ServerIP; //IP
        private int port;   //端口
        private bool isExit = false;
        private TcpClient client;
        private BinaryReader br;
        private BinaryWriter bw;
        public MainForm()
        {
            InitializeComponent();
            Random r = new Random((int)DateTime.Now.Ticks);
            txt_UserName.Text = "user" + r.Next(100, 999);
            lst_OnlineUser.HorizontalScrollbar = true;
            SetServerIPAndPort();
        }
        // 下载于 www.51aspx.com
        /// <summary>
        /// 根据当前程序目录的文本文件‘ServerIPAndPort.txt’内容来设定IP和端口
        /// 格式：127.0.0.1:8885
        /// </summary>
        private void SetServerIPAndPort()
        {
            try
            {
                FileStream fs = new FileStream("ServerIPAndPort.txt", FileMode.Open);
                StreamReader sr = new StreamReader(fs);
                string IPAndPort = sr.ReadLine();
                ServerIP = IPAndPort.Split(':')[0]; //设定IP
                port = int.Parse(IPAndPort.Split(':')[1]); //设定端口
                sr.Close();
                fs.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("配置IP与端口失败，错误原因：" + ex.Message);
                Application.Exit();
            }
        }
        // 下载于 www.51aspx.com
        /// <summary>
        /// 【登陆】按钮事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>