form2.cs

C常用算法程序集,一部比较经典的程序算法合集

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net;
using System.Net.Sockets;
namespace mychat1
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
        private TcpClient server;
        string myownip;
        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "" || textBox2.Text == "")
            {

                MessageBox.Show("请输入完整服务器的信息！");
                return ;
            }         
            string ip = textBox1.Text;
            int port = Convert.ToInt32(textBox2.Text);
            try
            {
                server = new TcpClient(ip, port);
                myownip=  server.Client.LocalEndPoint.ToString();
                byte [] info=Encoding .Unicode .GetBytes (textBox3 .Text + ":我上线了!");
                server.Client.Send(info);            
            }
            catch (SocketException)
            {
                MessageBox.Show("unable to connect to server!", "提示!", MessageBoxButtons.OK);
                return;
            }

            server.Close();
            Form main = new Form1 (textBox3 .Text ,ip,port,myownip );
            main.Show();
            this.Hide();

        }

        private void button2_Click(object sender, EventArgs e)
        {
            Application.Exit();

        }

       
    }
}