System.Diagnostics.Stopwatch stopwatch = new Stopwatch();stopwatch.Start(); //  开始监视代码运行时间//  you code ....stopwatch.Stop(); //  停止监视TimeSpan timespan = stopwatch.Elapsed; //  获取当前实例测量得出的总时间double hours = timespan.TotalHours; // 总小时double minutes = timespan.TotalMinutes;  // 总分钟double seconds = timespan.TotalSeconds;  //  总秒数double milliseconds = timespan.TotalMilliseconds;  //  总毫秒数