C # records the time-consuming operation of code.

   System.Diagnostics.Stopwatch Stopwatch = new Stopwatch ();
   Stopwatch. Start ();  Start monitoring code run time
   Stopwatch. Stop ();  Stop Monitoring
   TimeSpan timespan = stopwatch. Elapsed;  gets the total time measured by the current instance
   Double hours = TimeSpan. TotalHours; Total Hours
   Double minutes = TimeSpan. totalminutes;  Total minutes
   Double seconds = TimeSpan. TotalSeconds;  total number of seconds
   Double milliseconds = TimeSpan. TotalMilliseconds;  total number of milliseconds

C # records the time-consuming operation of code.