é常èªå·±åç头æ件åèªå·±åçæºæ件æ¾å¨ä¸èµ·ï¼
ä¾å¦ä¸åa.håa.cæ件æ¾å¨åä¸é¡¹ç®ç®å½ä¸
使ç¨å¤´æ件å¯ä»¥ç¨#includeå
³é®åï¼èªå·±å®ä¹ç头æ件建议使ç¨" "ï¼ç³»ç»ç使ç¨<>ï¼
//a.h
#ifndef A_H
#define A_H
int add(int a,int b);
#endif
ç¶åå¨å¦ä¸ä¸ªcæ件éé¢å®ç°add()å½æ°
//add.c
#include "a.h"
int add(int a,int b){return a+b;}
ä¹ååå¨å
¶ä»èªå·±çcæ件éé¢ç¨add()å½æ°çè¯ï¼
//main.c
#include <stdio.h>
#include "a.h"
int main(){
printf("1+1=%d\n",add(1,1));
return 0;
}
以ä¸æ¯ä¸ä¸ªå°å°çä¾åç¨åºï¼å¸®å©ç解ï¼
追é®æ¯ä¸æ¯è¦è¿æ ·æ头æ件åæºæ件æ¾å¨åä¸ä¸ªå·¥ç¨éæè½ç¨ï¼å¤´æ件åæºæ件çæ件åæ¯ä¸æ¯è¦ä¸æ ·ï¼
追çä¸æ¯ï¼ä½ å®å
¨å¯ä»¥å¤´æ件æ¾å¨ä»»ä½ä½ç½®ï¼ä½ è¦å¨includeåé¢çåå¼å·ä¸é´åä¸å¤´æ件ç»å¯¹è·¯å¾ä¹è¡ï¼å¤´æ件åæºæ件çæ件åä¸æ¯éè¦ä¸æ ·ï¼ä½ å¯ä»¥ç¨ä¸åçåå
åªæ¯ç¼ç¨ä¹ æ¯ä¸æç¸å
³çæ件ç¨æ件åå
³èèµ·æ¥ï¼ä¾¿äºç®¡ç