Stopwatch watch = new Stopwatch();
watch.Restart();
//
动作
//
watch.Stop();
lsLog.Items.Add("ElapsedMilliseconds = " + watch.ElapsedMilliseconds);
Stopwatch watch = new Stopwatch();
watch.Restart();
//
动作
//
watch.Stop();
lsLog.Items.Add("ElapsedMilliseconds = " + watch.ElapsedMilliseconds);