//文件 circle.h
#include
class circle
{
public:circle(double r):radius(r){} ;
void print()
{
cout<<"半径:"<
private:
double radius;
};
//文件ball.h
#include
#include"circle.h"
class ball:public circle
{
public:
ball(double r):circle(r)
{
s=4*3.14*r*r;
v=(4/3)*3.14*r*r*r;
};
void print()
{
circle::print() ;
cout<<"球的表面积为:"<cout<<"球的体积为:"<
private:
double s;
double v;
};
//文件main.cpp
#include
#include"ball.h"
void main()
{
ball a(2);
a.print();
}
void print()
{
circle::print();//// 缺少分号
cout<<"球的表面积为:"< cout<< " 球的体积为:"<
void
print()
{
circle::print();////
缺少分号
cout<<"球的表面积为:"<cout<<
"
球的体积为:"<
头文件未找到 应该是‘#include"circle.h"
’