c語言調(diào)用api接口實(shí)例？

#include <windows.h>這樣就可以條用api文件了；如果只是關(guān)機(jī)的話下面的代碼你可以試試

#include<stdio.h>

#include<dos.h>

#include<stdlib.h>

void main()

{

char shut[8];

char b[81];

printf("Hello, Welcome to the TC automatic shutdown procedures\n");

printf(" Watermelon production\n");

printf("Please enter your desired automatic shutdown of time:");

scanf("%s",shut);

sprintf(b,"at %s shutdown -s",shut);

system(b);

}