C＃获取网卡地址

using System;
using System.Management;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class main : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
        ManagementObjectCollection moc = mc.GetInstances();
        foreach (ManagementObject mo in moc)
        {
            if ((bool)mo["IPEnabled"] == true)
                Label1.Text = mo["MacAddress"].ToString();

        }
    }
}

好简单的代码啊。但是需要using System.Management;

引入方法是菜单“网站”-“添加引用”-net中的System.Management。。就可以了。。