C#服务器端获取用户设备信息

using System;
using System.Web.Mvc;

namespace ServerMonitoring.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
String userAgent;
userAgent = Request.UserAgent;
bool
_windows = userAgent.Contains("Windows NT"),

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_mac = userAgent.Contains("Macintosh"),
_iphone = userAgent.Contains("iPhone"),
_android = userAgent.Contains("Android")
;
if (_windows)
{
Response.Write("您的平台可能是win！微软系统：windows");
}
else if (_mac)
{
Response.Write("您的平台可能是Mac！苹果系统：Mac");
}
else if (_iphone)
{
Response.Write("您的平台可能是Iphone！苹果系统：Ios");
}
else if (_android)
{
Response.Write("您的平台可能是Android！安卓系统：Android");
}
else
{
Response.Write("未能识别您的系统");
}
return View();
}

}

}