(Each undeclared identifier is reported only once for each function it appears in.) 这个怎么改#include "stdafx.h"int main(){printf("\n");}\Users\Administrator\Desktop\qwred\qwred.cpp C:\Users\Admini5 C:\Users\Administrator\Desktop\qwred\qwred.cp

(Each undeclared identifier is reported only once for each function it appears in.) 这个怎么改#include "stdafx.h"int main(){printf("\n");}\Users\Administrator\Desktop\qwred\qwred.cpp C:\Users\Admini5 C:\Users\Administrator\Desktop\qwred\qwred.cp
(Each undeclared identifier is reported only once for each function it appears in.) 这个怎么改
#include "stdafx.h"
int main()
{
printf("\n");
}
\Users\Administrator\Desktop\qwred\qwred.cpp C:\Users\Admini
5 C:\Users\Administrator\Desktop\qwred\qwred.cpp `printf' undeclared (first use this function) strator\Desktop\qwred\C stdafx.h:No such file or directory.

(Each undeclared identifier is reported only once for each function it appears in.) 这个怎么改#include "stdafx.h"int main(){printf("\n");}\Users\Administrator\Desktop\qwred\qwred.cpp C:\Users\Admini5 C:\Users\Administrator\Desktop\qwred\qwred.cp
添加头文件：#include "stdio.h"