C++圆的半径,周长,面积

#include using namespace std;class circle{private :double redius,r;public:doubl
#include using namespace std;class circle
{private :double redius,r;public:double  getredius()//从键盘读入半径值,注意要有返回值{cin>>redius;return redius;}double getgirth(){return 3.14*2*redius;}double getarea(){return 3.14*redius*redius;}};int main()
{circle abc;//形参,存储半径,周长,面积的值cout<<"圆的半径为:"<