2023年11月29日作业

代码

#include 

using namespace std;
class Rect
{
private:
    int width;
    int height;
public:
    void init(int w,int h);
    void set_w(int w);
    void set_h(int h);
    void show();
};
void Rect::init(int w,int h)
{
    this->width = w;
    this->height = h;
}

void Rect::set_w(int w)
{
    this->width = w;
}

void Rect::set_h(int h)
{
    this->height = h;
}

void Rect::show()
{
    cout << "周长为：" << 2*(width+height) << endl;
    cout << "面积为：" << width*height << endl;
}
int main()
{
    Rect rect;
    int h,w;
    string options;
    cout << "请输入宽度和长度:" << endl;
    cin >> w >> h;
    rect.init(w,h);
    rect.show();
    cout << "是否决定修改宽度yes/no" << endl;
    cin >> options;
    if(options == "yes")
    {
    cout << "请输入要更改之后的宽度：" << endl;
    cin >> w;
    rect.set_w(w);
    }
    else
    {
        cout << "宽度未修改" << endl;
    }
    cout << "是否决定修改长度yes/no" << endl;
    cin >> options;
    if(options == "yes")
    {
    cout << "请输入要更改之后的长度:" << endl;
    cin >> h;
    rect.set_h(h);
    }
    else
    {
        cout << "长度未修改" << endl;
    }
    rect.show();

    return 0;
}

效果图：

思维导图