文件包含问题
#include"file1.h"#include"file2.h"
{float V;
V=(3/4)*PI*r*r*r;
}
{float S;
S=4*PI*r*r;
}
#include<stdio.h>
#define PI 3.1415926;
float main()
{float r,PI;
cout<<"input the munber of r="<<endl;
cout<<V <<S <<endl;
运行结果出错，“Cannot open include file: 'file1.h': No such file or directory“，菜鸟一只，急求解答
