cpp
#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;
}