ASP.NET测定页面执行时间

放在Global.asax里

protected void Application_BeginRequest(Object sender, EventArgs e)
{
   Application["StartTime"] = System.DateTime.Now;
 }
protected void Application_EndRequest(Object sender, EventArgs e)
 {
   System.DateTime startTime = (System.DateTime)Application["StartTime"];
   System.DateTime endTime = System.DateTime.Now;
   System.TimeSpan ts = endTime - startTime;
   Response.Write("页面执行时间:"+ ts.Milliseconds +" 毫秒");
  }