c 语言关机指令,如何用C语言调用关机指令?

#include "stdio.h"

#include

#include

void main()

{

char cmd[255]={0};

char str[10];

int i;

printf("选择关机时间：\n----------------------------\n(1): 7:00\t(2): 9:00\n(3): 10:00\t(4): 11:00\n(5): 11:35\t(6): 12:00\n(7): 13:00\t(8): 14:30\n(9): 18:30\t(10): 21:30\n(11): 22:29\t(12): 取消关机计划\n");

printf("想取消关机请在开始-->运行里输入shutdown -a:\n");

printf("---------------------------------------------\n");

scanf("%d",&i);

switch(i)

{

case 1: strcpy(str,"7:00");break;

case 2: strcpy(str,"9:00");break;

case 3: strcpy(str,"10:00");break;

case 4: strcpy(str,"11:00");break;

case 5: strcpy(str,"11:35");break;

case 6: strcpy(str,"12:00");break;

case 7: strcpy(str,"13:00");break;

case 8: strcpy(str,"14:30");break;

case 9: strcpy(str,"18:30");break;

case 10:strcpy(str,"21:30");break;

case 11:strcpy(str,"22:29");break;

case 12:system("shutdown -a");

}

sprintf(cmd,"at %s shutdown -s -t 60",str);

system(cmd);

}

给我分吧

取消

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