WinForm获取客户端MAC地址

 
　　　　 //获取MAC
        public string GetMacString()
        {
            string resMac = string.Empty;
            try
            {
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc2 = mc.GetInstances();
                foreach (ManagementObject mo in moc2)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        resMac = mo["MacAddress"].ToString();
                        mo.Dispose();
                        resMac = resMac.Replace(":", "-");//将“:”替换为“-”
                        return resMac;
                    }
                }
            }
            catch (Exception)
            {
                resMac = "00-00-00-00-00-00";
            }
            return resMac.ToLower();
        }
        #endregion

ManagementClass 需要引用 右键项目添加引用system.ManagementClass