C语言include的路径问题

Question

使用#include引用的时候，无法顺利引用。
以下为代码：

#include "print.h"
int main(void){
  printHello();
  return 0;
}

---

#include <stdio.h>

void printHello(void);

---

#include "print.h"
    void printHello(){
      printf("Hello World \n");
}

---

层级是这样的，请问大家如何解决。

Answer 1

A2A

Your error is caused by printHello in print.h, it should be printfHello, so just a typo.

You can refer to another my answer here: https://segmentfault.com/q/10...

Update

it seems you write wrong compile commands, try simplest solution:

 gcc print.c test.c 
 ./a.out

Answer 2

编译的时候，如果你用的是GCC或clang，可以添加编译指令：

-I.

来告诉编译器在.（即当前目录下）搜索#include包含的文件