请参见微小的StopWatch应用程序 [ ^ ].

希望适用于C#的高精度秒表 [

Hope A High-Precision Stopwatch for C#[^] article from CP might help you.

尝试

用于在C#或.NET中计时的高精度秒表类程序[ ^ ]

Try

A high precision stop watch class for timing in your C# or .NET programs[^]