问题
Can I get the elapsed time since I have called Start on a stopwatch using ElapsedMilliseconds without calling Stop? I have searched a lot round the internet but only saw examples where ElapsedMilliseconds is called after Stop. Is this value filled on a call to Stop or is it always correct?
回答1:
You can query the properties Elapsed, ElapsedMilliseconds, and ElapsedTicks while the Stopwatch instance is running or stopped. The elapsed time properties steadily increase while the Stopwatch is running; they remain constant when the instance is stopped.
-From http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch.elapsedmilliseconds.aspx
来源：https://stackoverflow.com/questions/15720813/should-i-call-stop-before-reading-elapsedmilliseconds