C# 设置本机IP、网关和DNS

using System;
using System.Management;

namespace SetIp
{
class Program
{
static void Main(string[] args)
{
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
if ((bool)mo["IPEnabled"])
{
ManagementBaseObject obj;

obj = mo.GetMethodParameters("EnableStatic");
if (obj != null)
{
obj["IPAddress"] = new string[] { "192.168.1.100" };
obj["SubnetMask"] = new string[] { "255.255.255.0" };
mo.InvokeMethod("EnableStatic", obj, null);
}

if (obj != null)
{
obj = mo.GetMethodParameters("SetGateways");
obj["DefaultIPGateway"] = new string[] { "192.168.1.1" };
mo.InvokeMethod("SetGateways", obj, null);
}

obj = mo.GetMethodParameters("SetDNSServerSearchOrder");
if (obj != null)
{
string[] s = { "8.8.8.8", "8.8.8.4" };
obj["DNSServerSearchOrder"] = s;
mo.InvokeMethod("SetDNSServerSearchOrder", obj, null);
}
break;
}
}
}
}
}