查询本机IP

using System;
using System.Net;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace GetIP
{
 /// <summary>
 /// Form1 的摘要说明。
 /// </summary>
 public class Form1 : System.Windows.Forms.Form
 {
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Label label1;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form1()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();
   string s="";
   System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
   for (int i = 0; i < addressList.Length; i ++)
   {
    s += addressList[i].ToString();
   } 
   this.textBox1.Text = s;
   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  #region Windows Form Designer generated code
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.textBox1 = new System.Windows.Forms.TextBox();
   this.label1 = new System.Windows.Forms.Label();
   this.SuspendLayout();
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(72, 8);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(104, 21);
   this.textBox1.TabIndex = 0;
   this.textBox1.Text = "";
   //
   // label1
   //
   this.label1.AutoSize = true;
   this.label1.Location = new System.Drawing.Point(8, 16);
   this.label1.Name = "label1";
   this.label1.Size = new System.Drawing.Size(60, 14);
   this.label1.TabIndex = 1;
   this.label1.Text = "自己的IP:";
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(192, 45);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                    this.label1,
                    this.textBox1});
   this.Name = "Form1";
   this.Text = "Form1";
   this.ResumeLayout(false);

  }
  #endregion

  /// <summary>
  /// 应用程序的主入口点。
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new Form1());
   }
 }
}

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