判断网络是否连接

来源：互联网发布：淘宝开店怎么收费标准编辑：程序博客网时间：2024/04/23 14:59

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.NetworkInformation;namespace IsNetWorking{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            Ping p = new Ping();            PingReply pr;            while (true)            {                try                {                    pr = p.Send("www.baidu.com");                    if (pr.Status != IPStatus.Success)                    {                        MessageBox.Show("No link!");                    }                     else                    {                        MessageBox.Show("Is working!");                        return;                    }                }                catch                {                                }                            }        }    }}