asp.net实现识别客户端浏览器或操作系统

1、通过 UserAgent protected void Page_Load(object sender, EventArgs e) { //验证终端 string agent = Request.Headers[User-Agent]; if (choose_net(agent)) { Response.Redirect(/mobile/); } } //验证终端 public bool choose_net(String userAgent) { if (userAgent.IndexOf(No