如何用C#设置本机IP地址

以下是一个简单的C#代码示例，用于设置本机IP地址和子网掩码：

using System.Net;
using System.Net.NetworkInformation;

IPAddress newIpAddress = IPAddress.Parse("192.168.1.100");
IPAddress subnetMask = IPAddress.Parse("255.255.255.0");
string networkInterfaceName = "Ethernet";

NetworkInterface[] networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface networkInterface in networkInterfaces)
{
    if (networkInterface.Name == networkInterfaceName)
    {
        IPInterfaceProperties ipProperties = networkInterface.GetIPProperties();
        UnicastIPAddressInformationCollection unicastAddresses = ipProperties.UnicastAddresses;
        foreach (UnicastIPAddressInformation address in unicastAddresses)
        {
            if (address.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
            {
                ipProperties.UnicastAddresses.Remove(address);
                break;
            }
        }

        ipProperties.UnicastAddresses.Add(new UnicastIPAddressInformation(newIpAddress, subnetMask));
        networkInterface.SetIPProperties(ipProperties);
        break;
    }
}

此代码将更改名为“Ethernet”的网络接口的IP地址和子网掩码。请注意，更改本机IP地址需要管理员权限。