第五次开源（闹钟）的第二版

#include <stdio.h>　　

#include <windows.h>　　

#include <winbase.h>

int main(int argc, char *argv[])

{

SYSTEMTIME time;

SYSTEMTIME clock;

GetLocalTime(&time);

printf(“当前时间为：%2d:%2d:%2d\n”,time.wHour,time.wMinute,time.wSecond);

printf(“请设定闹钟时间：\n”);

printf(“时：”);

scanf(“%2d”,&clock.wHour);

printf(“分：”);

scanf(“%2d”,&clock.wMinute);

printf(“秒：”);

scanf(“%2d”,&clock.wSecond);

if(clock.wHour <= 24 | clock.wMinute <= 60 | clock.wHour >= 0 | clock.wMinute >=0)

{

//printf(“sleeping…”);

while(1)

{

Sleep(1000);

GetLocalTime(&time);

if((time.wHour==clock.wHour)&&(time.wMinute==clock.wMinute)&&(time.wSecond==clock.wSecond))

{

system(“cls”);

printf(“\a\a\a时间到!!!”);

while(true)

{

printf(“\a\a\a”);

Sleep(1000);

}

break;

}

}

}

else

{

system(“cls”);

printf(“Number is false”);

}

system(“pause”);

return 0;

}

这次加了重复执行，需要关闭，提示更高效