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-//练习案例1:设计立方体类
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-
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-//设计立方体类(Cube)
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-//求出立方体的面积和体积
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-//分别用全局函数和成员函数判断两个立方体是否相等。
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-
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-//1、创建立方体类
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-//2、设计属性
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-//3、设计行为 获取立方体面积和体积
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-//4、分别利用全局函数和成员函数 判断两个立方体是否相等
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-
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-#include <iostream>
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-
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-class Cube
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-{
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-public:
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- //行为
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-
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- //设置获取长、宽、高
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-
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- //设置长
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- void setL(int l)
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- {
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- m_L = l;
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- }
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- //获取长
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- int getL()
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- {
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- return m_L;
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- }
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- //设置宽
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- void setW(int w)
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- {
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- m_W = w;
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- }
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- //获取宽
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- int getW()
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- {
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- return m_W;
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- }
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- //设置高
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- void setH(int h)
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- {
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- m_H = h;
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- }
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- //获取高
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- int getH()
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- {
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- return m_H;
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- }
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- //获取立方体的面积
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- int calculateS()
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- {
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- return 2 * m_L * m_W + 2 * m_H * m_W + 2 * m_L * m_H;
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- }
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- //获取立方体的体积
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- int calculateV()
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- {
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- return m_H * m_L * m_W;
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- }
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-
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- //利用成员函数来判断两个立方体是否相等
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- bool isSameByClass(Cube &c)
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- {
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- if (m_L == c.getL() && m_W == c.getW() && m_H == c.getH())
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- {
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- return true;
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- }
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- return false;
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- }
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-
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-private:
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- //属性
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-
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- int m_L;
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- int m_W;
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- int m_H;
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-
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-
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-};
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-
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-//利用全局函数判断 两个立方体是否相等
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-bool isSame(Cube& c1, Cube& c2)
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-{
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- if (c1.getL() == c2.getL() && c1.getW() == c2.getW() && c1.getH() == c2.getH())
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- {
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- return true;
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- }
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-
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- return false;
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-}
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-
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-int main5()
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-{
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- //创建立方体对象
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- Cube c1;
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- c1.setL(10);
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- c1.setW(10);
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- c1.setH(10);
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-
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- std::cout << "c1的面积为 : " << c1.calculateS() << std::endl;
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- std::cout << "c1的体积为 : " << c1.calculateV() << std::endl;
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-
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-
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- //创建第二个立方体
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- Cube c2;
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- c1.setL(10);
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- c1.setW(10);
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- c1.setH(10);
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-
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- //利用全局函数判断
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- bool ret = isSame(c1, c2);
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- if (ret)
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- {
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- std::cout << "全局函数判断 : c1和c2是相等的" << std::endl;
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- }
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- else
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- std::cout << "全局函数判断 : c1和c2是不相等的" << std::endl;
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-
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- //利用成员函数判断
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- ret = c1.isSameByClass(c2);
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- if (ret)
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- {
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- std::cout << "成员函数判断 : c1和c2是相等的" << std::endl;
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- }
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- else
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- std::cout << "成员函数判断 : c1和c2是不相等的" << std::endl;
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-
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- system("pause");
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-
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- return 0;
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-}
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