收集客户机信息时，需要得到客户机的IP，那么客户端就需要提供自己的本机IP：

using System; using System.Net; using System.Windows.Forms; namespace Mynet { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { MessageBox.Show(GetMyIP()); } /// <summary> /// 得到本机IP /// </summary> /// <returns></returns> public string GetMyIP() { try { string computername = Dns.GetHostName(); IPHostEntry ipall = Dns.GetHostEntry(computername); for (int i = 0; i < ipall.AddressList.Length; i++) { string theip = ipall.AddressList[i].ToString(); if (theip.LastIndexOf(".") != -1) { return theip; } } return "未得到IP地址"; } catch (Exception ErrMsg) { return ErrMsg.ToString(); } } } }