using System;
class Class1
{
[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);
QueryPerformanceCounter(ref count1);
count = count1 - count;
result = (double) (count) / (double) freq;
Console.WriteLine("耗时: {0} 秒", result);
Console.ReadLine();
}
}