fun.c
#include <stdio.h>
int fun1(){
printf("The first function!\n");
return 0;
}
int fun2(){
printf("The second function!\n");
return 0;
}
int fun3(){
printf("The third function!\n");
return 0;
}
fun.h
#ifndef _FUN_H #define _FUN_H extern int fun1(void); extern int fun2(void); extern int fun3(void); #endif
main.c
#include <stdio.h>
#include <stdlib.h>
#include "fun.h"
int main(){
fun1();
fun2();
fun3();
system("pause");
return 0;
}
原文：http://www.cnblogs.com/summer-xwq/p/4181596.html