有如下程序: #include<iostream>usingnamespacestd; classPoint{intX,y; public: Point(in
有如下程序:
#include<iostream>
usingnamespacestd;
classPoint{
intX,y;
public:
Point(intx1=0,inty1=0):X(x1),y(y1){}
intget(){returnx+y;}
};
classCircle{
Pointcenter;
intradius;
public:
Circle(intCX,intcy,intr):center(CX,cy),radius(r)
{}
intget(){returncenter.get()+radius;}
};
intmain(){
Circlec(3,4,5);
cout<<c.get()<<endl;
return0;
}
运行时的输出结果是()。
A.5
B.7
C.9
D.12