1.使用DateTime.Now计算
static void Main(string[] args) { var begin = DateTime.Now; Thread.Sleep(2000); var end = DateTime.Now; Console.WriteLine($"程序耗时:{(end - begin).TotalMilliseconds}ms."); Console.ReadLine(); }
2.使用Stopwatch计算
using System; using System.Diagnostics; using System.Threading; namespace CountConsumeTime { class Program { static void Main(string[] args) { Stopwatch sw = new Stopwatch(); sw.Start(); Thread.Sleep(2000); sw.Stop(); Console.WriteLine($"程序耗时:{sw.ElapsedMilliseconds}ms."); Console.ReadLine(); } } }
3.使用ValueStopwatch
using System; using System.Diagnostics; using System.Threading; namespace CountConsumeTime { class Program { static void Main(string[] args) { var watch = ValueStopwatch.StartNew(); Thread.Sleep(999); Console.WriteLine($"程序耗时:{watch.GetElapsedTime().TotalMilliseconds}ms."); Console.ReadLine(); } } internal struct ValueStopwatch { private static readonly double TimestampToTicks = TimeSpan.TicksPerSecond / (double)Stopwatch.Frequency; private readonly long _startTimestamp; public bool IsActive => _startTimestamp != 0; private ValueStopwatch(long startTimestamp) { _startTimestamp = startTimestamp; } public static ValueStopwatch StartNew() => new ValueStopwatch(Stopwatch.GetTimestamp()); public TimeSpan GetElapsedTime() { // Start timestamp can't be zero in an initialized ValueStopwatch. It would have to be literally the first thing executed when the machine boots to be 0. // So it being 0 is a clear indication of default(ValueStopwatch) if (!IsActive) { throw new InvalidOperationException("An uninitialized, or 'default', ValueStopwatch cannot be used to get elapsed time."); } var end = Stopwatch.GetTimestamp(); var timestampDelta = end - _startTimestamp; var ticks = (long)(TimestampToTicks * timestampDelta); return new TimeSpan(ticks); } } }
标签:Console,C#,startTimestamp,System,---,耗时,Stopwatch,using,ValueStopwatch From: https://www.cnblogs.com/hobelee/p/16759286.html