C#测试用计算程序执行时间

using System;using System.Collections.Generic;using System.Text;using System.Threading; namespace MyTimeCost{ class Program { [System.Runtime.InteropServices.DllImport("Kernel32.dll")] static extern bool QueryPerformanceCounter(ref long count); [System.Runtime.InteropServices.DllImport("Kernel32.dll")] static extern bool QueryPerformanceFrequency(ref long count); [STAThread] static void Main(string[] args) { long count = 0; long count1 = 0; long freq = 0; double result = 0; QueryPerformanceFrequency(ref freq); QueryPerformanceCounter(ref count); //需要测试的模块 int heisetoufa; for (heisetoufa = 1; heisetoufa < 100; heisetoufa++) { //Console.WriteLine("第" + heisetoufa + "行"); if (heisetoufa == 5000) { Thread.Sleep(10); } } //需要测试的模块 QueryPerformanceCounter(ref count1); count = count1 - count; result = (double)(count) / (double)freq; Console.WriteLine("耗时: {0} 秒", result); Console.ReadLine(); } }}