c - 我的错误是什么？

Question

我的编译器说:保存未声明...我通过“FILE *save”声明了它

FILE *save
save = fopen ("filename.txt", "w");

while ( current != NULL )
{
    fprintf (save, " %s %s %d", current -> name, current -> tel, current -> age);
    current = current -> next;
}

Answer 1

FILE *save
save = fopen ("filename.txt", "w");

这里缺少分号:

FILE *save;