用c++求圆柱体体积

发布网友发布时间：2023-07-06 08:35

共2个回答

热心网友时间：2024-11-16 03:44

#include<bits/stdc++.h>
using namespace std;
const double PI=3.1415926535;//圆周率
class Cylinder{
private:
double R,H;//底面半径，高
public:
Cylinder();//无参构造
Cylinder(double,double);//带参构造
double toVolume();//返回圆柱体体积
void print();//打印半径，高，圆柱体体积
};
Cylinder::Cylinder(){//无参构造
this->R=1;
this->H=10;
}
Cylinder::Cylinder(double R,double H){//带参构造
this->R=R;
this->H=H;
}
double Cylinder::toVolume(){//返回圆柱体体积
return pow(this->R,2)*PI*this->H;
}
void Cylinder::print(){//打印半径，高，圆柱体体积
cout<<"半径:";
cout<<this->R<<endl;
cout<<"高:";
cout<<this->H<<endl;
cout<<"体积:";
cout<<toVolume()<<endl;
}
int main(){
Cylinder *t1=new Cylinder();//无参构造，半径：默认1，高：默认10
cout<<t1->toVolume()<<endl;//输出体积
t1->print();// //打印半径，高，圆柱体体积

Cylinder *t2=new Cylinder(2.2,33.5);//带参构造
return 0;
}

热心网友时间：2024-11-16 03:44

代码及其运行效果