• 面向对象——案例练习(3)判断两个立方体是否相等


    利用全局函数实现

    #define _CRT_SECURE_NO_WARNINGS
    #include <iostream>
    
    using namespace std;
    
    class Cube
    {
    public:
        void setABC(int a, int b, int c)
        {
            m_a = a;
            m_b = b;
            m_c = c;
        }
        int getArea()
        {
            return ((m_a*m_b) + (m_b*m_c) + (m_a*m_c)) * 2;
        }
    
        int getVolume()
        {
            return m_a*m_b*m_c;
        }
    
        int getA()
        {
            return m_a;
        }
    
        int getB()
        {
            return m_b;
        }
    
        int getC()
        {
            return m_c;
        }
    private:
        int m_a;
        int m_b;
        int m_c;
    };
    
    //全局函数
    bool judgeCube(Cube &c1, Cube &c2)
    {
        if (c1.getA() == c2.getA() && 
            c1.getB() == c2.getB() && 
            c1.getC() == c2.getC())
        {
            return true;
        }
        else
        {
            return false;
        }
    
    }
    
    int main(void)
    {
        Cube c1;
        c1.setABC(10, 20, 30);
    
        Cube c2;
        c2.setABC(10, 20, 30);
    
        cout << "c1的体积是:" << c1.getVolume() << endl;
        cout << "c1的面积是:" << c2.getArea() << endl;
    
        if (judgeCube(c1, c2) == true)
        {
            cout << "相等" << endl;
        }
        else 
        {
            cout << "不相等" << endl;
        }
    
        return 0;
    }

    利用成员函数实现:

    #define _CRT_SECURE_NO_WARNINGS
    #include <iostream>
    
    using namespace std;
    
    class Cube
    {
    public:
        void setABC(int a, int b, int c)
        {
            m_a = a;
            m_b = b;
            m_c = c;
        }
        int getArea()
        {
            return ((m_a*m_b) + (m_b*m_c) + (m_a*m_c)) * 2;
        }
    
        int getVolume()
        {
            return m_a*m_b*m_c;
        }
    
        int getA()
        {
            return m_a;
        }
    
        int getB()
        {
            return m_b;
        }
    
        int getC()
        {
            return m_c;
        }
      //同类之间无私处
    bool judgeCube(Cube &another) { if (m_a == another.m_a && m_b == another.m_b && m_c == another.m_c) { return true; } else { return false; } } private: int m_a; int m_b; int m_c; }; int main(void) { Cube c1; c1.setABC(10, 20, 30); Cube c2; c2.setABC(10, 20, 30); cout << "c1的体积是:" << c1.getVolume() << endl; cout << "c1的面积是:" << c2.getArea() << endl; if (c1.judgeCube(c2) == true) { cout << "相等" << endl; } else { cout << "不相等" << endl; } return 0; }
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  • 原文地址:https://www.cnblogs.com/yuehouse/p/9788541.html
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