C编译报错: implicit declaration of function xxx is invalid in C99 [-Wimplicit-function-declaration]

C编译报错: implicit declaration of function xxx is invalid in C99 [-Wimplicit-function-declaration]c++ 代码文件 test.c，内容以下:web #include <stdio.h> int main() { // 个人第一个 C 程序 printf("Hello, World! \n"

>>阅读原文<<