public void Speed() { const int max = 1000000; var obj0 = new ClassOne("哈哈"); Stopwatch s = new Stopwatch(); s.Restart(); for (var i = 0; i < max; i++) { var code = obj0.GetHashCode(); } var elapsed0 = s.ElapsedMilliseconds; var obj1 = new ClassOneCommon("哈哈"); s.Restart(); for (var i = 0; i < max; i++) { var code = obj1.GetHashCode(); } var elapsed1 = s.ElapsedMilliseconds; }