C++问题,编写一个程序计算出球、圆柱和圆锥的表面积和体积#include#includeusing namespace std;#define PI 3.1415class circle{public:\x09void information()\x09{\x09 \x09\x09double a;\x09\x09couta;\x09}};class sphere:public circle{p

C++问题,编写一个程序计算出球、圆柱和圆锥的表面积和体积#include#includeusing namespace std;#define PI 3.1415class circle{public:\x09void information()\x09{\x09 \x09\x09double a;\x09\x09couta;\x09}};class sphere:public circle{p
C++问题,编写一个程序计算出球、圆柱和圆锥的表面积和体积
#include
#include
using namespace std;
#define PI 3.1415
class circle
{
public:
\x09void information()
\x09{\x09
\x09\x09double a;
\x09\x09couta;
\x09}
};
class sphere:public circle
{
public:
void first(double s1,double a)
\x09{
\x09\x09double v1;
\x09\x09s1=4*PI*a*a;
//第一二处错误
v1=(PI*a*a*a*4)/3；
cout

C++问题,编写一个程序计算出球、圆柱和圆锥的表面积和体积#include#includeusing namespace std;#define PI 3.1415class circle{public:\x09void information()\x09{\x09 \x09\x09double a;\x09\x09couta;\x09}};class sphere:public circle{p

你的程序何止那几处错误,简直惨不忍睹.

我简单的修改了,编译通过了.

#include <iostream>
#include <string>
using namespace std;

#define PI 3.1415

class circle
{
public:
    void information(double & a)
    {\x09 
        cout<<"请输入半径：";
        cin>>a;
    }

};

class sphere:public circle
{
public:
    void first(double a)
    {
        double v1;
        double s1;
        s1=4*PI*a*a;
        //第一二处错误
        v1=(PI*a*a*a*4)/3 ;
       cout<<"球的表面积为:"<<s1<<endl<<"球的体积为:"<<v1<<endl;
    }\x09

};

class cylinder:public circle
{
public:
    void second(double a)
    {
        double s2;
        double v2;
        double h;
        cout<<"请输入圆柱的高：";
        cin>>h;
        s2=2*2*PI*a*a+2*PI*a*h;
        v2=2*PI*a*a*h;
        cout<<"圆柱的表面积为:"<<s2<<endl<<"圆柱的体积为:"<<v2<<endl;
    }

};

class cone:public circle
{
public:
    void third(double a)
    {
        double s2;
        double v2;
        double l;
        cout<<"请输入圆锥的高：";
        cin>>l;
        s2=2*PI*a*a+PI*a*l;
        v2=2*PI*a*a*l/3;
        cout<<"圆锥的表面积为:"<<s2<<endl<<"圆锥的体积为:"<<v2<<endl;
    }

};

void main()
{
    int chose;
    double a;
    double h;
    double l;
    cin>>chose;
    circle bason;
    bason.information(a);
    cout<<"请选择："<<endl<<"求球请输入1"<<endl<<"求圆柱请输入2"<<endl<<"求圆锥请输入3"<<endl;
    if(chose==1)
    {
        sphere bason;
        //第三处错误
        bason.first(a);
    }
    else if(chose==2)
    {
        cylinder bason;
        bason.second(a);
    }
    else if(chose==3)
    {
        cone bason;
        bason.third(a);
    }
}