程序运行时间（windows）

C实现

#include <iostream>  
#include <windows.h>  
using namespace std;
int main(int argc, char **argv)
{
  int year, month, day, hour, minutes, seconds, milliseconds;
  SYSTEMTIME start, end;
  STARTUPINFO si;
    //一些必备参数设置  
      memset(&si, 0, sizeof(STARTUPINFO));
  si.cb = sizeof(STARTUPINFO);
  si.dwFlags = STARTF_USESHOWWINDOW;
  si.wShowWindow = SW_SHOW;
  PROCESS_INFORMATION pi;
    //必备参数设置结束  
      if (!CreateProcess(NULL, argv[1], NULL, NULL, FALSE, 0, NULL, NULL, & si, & pi))
 
  {
      cout << "Create Fail!" << endl;
      exit(1);
     
  }
  else  
  {
      GetSystemTime(&start);
      cout << "Success!" << endl;
     
  }
  WaitForSingleObject(pi.hProcess, INFINITE);
  GetSystemTime(&end);
  milliseconds = end.wMilliseconds - start.wMilliseconds;
  seconds = end.wSecond - start.wSecond;
  minutes = end.wMinute - start.wMinute;
  hour = end.wHour - start.wHour;
  day = end.wDay - start.wDay;
  month = end.wMonth - start.wMonth;
  year = end.wYear - start.wYear;
  if (milliseconds < 0)
     
    {
        seconds--;
        milliseconds += 1000;
       
    }
  if (seconds < 0)
     
    {
        minutes--;
        seconds += 60;
       
    }
  if (hour < 0)
     
    {
        day--;
        hour += 24;
       
    }
  if (day < 0)
     
    {
        month--;
        day += 30;
       
    }
  if (month < 0)
     
    {
        year--;
        month += 12;
       
    }
  if (year > 0)
     
    {
        printf("%d年", year);
       
    }
  if (month > 0)
     
    {
        printf("%d月", month);
       
    }
  if (day > 0)
     
    {
        printf("%d天", day);
       
    }
  if (hour > 0)
     
    {
        printf("%d小时", hour);
       
    }
  if (minutes > 0)
     
    {
        printf("%d分钟", minutes);
       
    }
  if (seconds > 0)
     
    {
        printf("%d秒", seconds);
       
    }
  if (milliseconds > 0)
     
    {
        printf("%d微秒", milliseconds);
       
    }
  printf("\n");
  return 0;
}