c printf 段错误

The main cause of this error is - missing opening curly brace ({), before the printf() function.

导致此错误的主要原因是-在printf()函数之前缺少打开的花括号( { )。

Example:

例：

#include <stdio.h>
int main(void)
printf("Hello world");
return 0;
}

Output

输出量

prog.c: In function ‘main’:
prog.c:4:2: error: expected declaration specifiers before ‘printf’printf("Hello world");^~~~~~
prog.c:5:2: error: expected declaration specifiers before ‘return’return 0;^~~~~~
prog.c:6:1: error: expected declaration specifiers before ‘}’ token}^
prog.c:6:1: error: expected ‘{’ at end of input

In this program, opening brace of the main() block is missing

在此程序中，缺少main()块的大括号

How to fix?

怎么修？

To fix this and such errors, please take care of curly braces, they are properly opened and closed.

要解决此错误和此类错误，请注意花括号已正确打开和关闭。

Correct code:

正确的代码：

#include <stdio.h>
int main(void){
printf("Hello world");
return 0;
}

Output

输出量

Hello world

翻译自: https://www.includehelp.com/c-programs/expected-declaration-specifies-before-printf-error-in-c.aspx

c printf 段错误