测量两个任务的时间

Question

我的程序中有两个任务，我需要计算每个任务的时间，我读到stopwatch和TimeSpan，但我不知道我必须使用哪个，怎么做，我想要以毫秒为单位测量每项任务的时间

for (int num = 2; num < 243; num++)
   {
     do something\\ compute time for first task
     do something\\ compute time for second task

    }

Answer 1

您可以轻松地将Stopwatch用于此

 Stopwatch watch = new Stopwatch();

  watch.Start();

  // do something
  watch.Stop();

  Console.WriteLine(watch.ElapsedMilliseconds);
  watch.Reset();

  watch.Start();
  // do something different
  ...

Answer 2

var start = DateTime.Now;
//code to measure
var timeTaken = (DateTime.Now - start).TotalMilliseconds;