C# Ping类的使用

花了一天，随便写的个小程序，源码公开，有需要的可以 拿去。我写这个程序的本意是可以ping有固定IP的圈存机，如何网络不通会自己返回其相应的位置。

程序说明，程序可以自动ping预先写入的一组IP地址，也可以手动ping输入的ip.

代码如下：

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.Net.NetworkInformation;

namespace Ping_test
{
    public partial class ManiForm : Form
    {
        public ManiForm()
        {
            InitializeComponent();

        }
        //表示可变字符串
     
     //   IcmpPacket packet = new IcmpPacket(0, 0, 0, 45, 0, 4);
      //  Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                IPAddress myIP = IPAddress.Parse(textBox1.Text);
            }
            catch(Exception ex)
            {
                MessageBox.Show("不是有效的IP");
                return;
            }
            this.Text = "正在ping....";
         //   listBox1.Items.Clear();
            Ping pingSender = new Ping();
            PingOptions options = new PingOptions();

            // Use the default Ttl value which is 128,
            // but change the fragmentation behavior.
            options.DontFragment = true;

            // Create a buffer of 32 bytes of data to be transmitted.
            string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            int timeout = 120;
            for (int i = 0; i < 4; i++)
            {
                PingReply reply = pingSender.Send(textBox1.Text, timeout, buffer, options);      
                displayReply(reply);
                timeDelay(800);    //0.8s    
          
             }
            this.Text = "已完成";
        }
        private void button3_Click(object sender, EventArgs e)
        {
            this.Close();
            Application.Exit(); 
        }
      

        private void button2_Click(object sender, EventArgs e)
        {
            string[] ipaddress = new string[4];
            ipaddress[0] = "192.168.1.1";
            ipaddress[1] = "192.168.1.2";
            ipaddress[2] = "192.168.1.3";
            ipaddress[3] = "192.168.1.4";
            for (int i = 0; i < 4; i++)
            {
                textBox1.Text = ipaddress[i];
                button1_Click(this, e);
            }

        }
        private void displayReply(PingReply reply) //显示结果   
        {
            StringBuilder sbuilder;
            sbuilder = new StringBuilder();
            if (reply.Status == IPStatus.Success)
            {
                    
                sbuilder.Append(string.Format("地址: {0} ", reply.Address.ToString()));
                sbuilder.Append(string.Format("时间: {0} ", reply.RoundtripTime));
                sbuilder.Append(string.Format("生存期: {0} ", reply.Options.Ttl));
             // sbuilder.Append(string.Format("Don't fragment: {0} ", reply.Options.DontFragment));
                sbuilder.Append(string.Format("缓存: {0} ", reply.Buffer.Length));
                listBox1.Items.Add(sbuilder.ToString());   
            }
            else
            {
                
                switch(textBox1.Text)
                {
                    case "192.168.1.1":
                        {
                          sbuilder.Append("地址："+textBox1.Text + "  一号圈存机不可达！");
                          listBox1.Items.Add(sbuilder.ToString());
                          break;
                        }
                    case "192.168.1.2":
                        {
                            sbuilder.Append("地址："+textBox1.Text + "  二号圈存机不可达！");
                            listBox1.Items.Add(sbuilder.ToString());
                            break;
                        }
                    case "192.168.1.3":
                        {
                            sbuilder.Append("地址："+textBox1.Text + "  三号圈存机不可达！");
                            listBox1.Items.Add(sbuilder.ToString());
                            break;
                        }
                case "192.168.1.4":
                    {
                        sbuilder.Append("地址："+textBox1.Text + "  四号圈存机不可达！");
                        listBox1.Items.Add(sbuilder.ToString());
                        break;
                    }

                  }   //switch


            }
            this.listBox1.SelectedIndex = this.listBox1.Items.Count - 1;
        }
        /// <summary>
        /// 延时函数
        /// </summary>
        /// <param name="iInterval"></param>
        private void timeDelay(int iInterval)
        {
            DateTime now = DateTime.Now;
            while (now.AddMilliseconds(iInterval) > DateTime.Now)
            { }
            return;
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.listBox1.Items.Clear();
        }

    

    }
}