程序运行时间（windows）
#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;
}