#include <iostream>using namespace std;
class Rect
{int width;  //宽int height; //高
public://初始化函数void init(int w,int h){width=w;height=h;}//更改宽度void set_w(int w){width=w;}//更改高度void set_h(int h){height=h;}//输出矩形周长和面积void show(){cout << "宽： " << width << endl;cout << "高： " << height << endl;cout << "周长： " << (width+height)*2 << endl;cout << "面积： " << (width*height) << endl;}
};int main()
{Rect r1;int a,b;cout << "请输入宽：" << endl;cin >> a;cout << "请输入高：" << endl;cin >> b;r1.init(a,b);r1.set_w(a);r1.set_h(b);r1.show();return 0;
}