测试时间简易版

        DateTime begintime = DateTime.Now;
                //此处写一个代码逻辑  
       
        DateTime endtime = DateTime.Now;
        TimeSpan oTime = endtime.Subtract(begintime);
        //Console.WriteLine("运行时间为{0}秒",oTime.TotalSeconds);//输出秒
        Console.WriteLine("运行时间为{0}毫秒", oTime.TotalMilliseconds);//输出毫秒