C#实现根据域名查询ip实例

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.Sockets;

namespace Pxkt_Service
{
    public partial class DomainToIp : Form
    {
        public DomainToIp()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string strDomain = textBox1.Text.ToString();
            IPHostEntry hostEntry = Dns.GetHostEntry(strDomain);
            IPEndPoint ipEndPoint = new IPEndPoint(hostEntry.AddressList[0], 0);
        string ipAddress = ipEndPoint.Address.ToString();
            textBox1.Text = ipAddress;
        }
    }
}