作业"/>
day3作业
自己封装一个矩形类(Rect),拥有私有属性:宽度(width)、高度(height),
定义公有成员函数:
初始化函数:void init(int w, int h)
更改宽度的函数:set_w(int w)
更改高度的函数:set_h(int h)
输出该矩形的周长和面积函数:void show()
#include <iostream>using namespace std;
class Rect
{
private:double width;double height;
public:Rect():width(0),height(0){}void set_w(double w){width=w;}void set_h(double h){height=h;}void show(){double C=2*(width+height);double S=width*height;cout << "C = "<< C <<endl;cout << "S = "<< S <<endl;}
};int main()
{Rect r;r.show();//C=0 S=0r.set_h(5.2);r.set_w(2);r.show();return 0;
}
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day3作业
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