//==方法定义：==========using System.Diagnostics; public delegate void Action();public static class Run {    public static double GetRunTime(Action method) {        Stopwatch sw = new Stopwatch();        sw.Start();        method();        sw.Stop();        return sw.Elapsed.TotalMilliseconds;    }}  //==调用代码：注意用Lamp表达式==========Run.GetRunTime(    ()=>{        DoSomeThing();    }).ToString()