方法一: 已经证实能用的. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Net; using System.Net.NetworkInformation; namespace PingIpAddress { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } private Ping pingSender = new Ping(); private string strIP = ""; private void button1_Click(object sender, EventArgs e) { strIP = txtIP.Text; //要ping的IP地址 第一种方法本人亲自试验过。可以使用 PingOptions pingOption = new PingOptions(); pingOption.DontFragment = true; string data = "sendData:goodgoodgoodgoodgoodgood"; byte[] buffe