class circle {
protected:
point center;
int radius;
public:
circle(int x, int y, int r):center(x, y),radius(r) {
cout << "construct circle: " << radius << endl;
}
~circle(){ cout << "destroy circle " << endl;}
};
class circle {
protected:
point center;
int radius;
public:
circle(int x, int y, int r):center(x, y),radius(r) {
cout << "construct circle: " << radius << endl;
}
~circle(){ cout << "destroy circle " << endl;}
};
class circle {
protected: //受保护成员
point center;
int radius;
public: //公共成员
circle(int x, int y, int r) :center(x, y), radius(r) { //初始化构造函数circle(),center初始值是x,y radius = r
cout << "construct circle: " << radius << endl; //输出到控制台“construct circle: r”
}
~circle(){ //析构函数,删除circle()函数,释放内存
cout << "destroy circle " << endl; //输出到控制台“destroy circle”
}
};