思维导图

Rect类

#include <iostream>using namespace std;class my_Rect
{
private:int width;int height;public://初始化void init(){cout << "please ener w and h" << endl;cin >> width;cin >> height;cout << "success" << endl;}//更改长度和宽度void set_rect(int w,int h){width=w;height=h;cout << "success" << endl;}void show(){cout <<"面积:" << width*height << endl;}};int main()
{my_Rect AA;AA.init();AA.show();AA.set_rect(2,10);AA.show();return 0;
}