利用类计算立方体体积面积和判断两个立方体是否相等

#include<iostream>
using namespace std;

class Cube
{
public:
  void setL(int L)
  {
    m_L = L;
  }
  int getL()
  {
    return m_L;
  }

  void setH(int H)
  {
    m_H = H;
  }
  int getH()
  {
    return m_H;
  }

  void setW(int W)
  {
    m_W = W;
  }
  int getW()
  {
    return m_W;
  }
  int  calculateS()
  {
    return 2*m_L*m_H+2*m_L*m_W+2*m_W*m_H;
  }
  int calculateV()
  {
    return m_L*m_H*m_W;
  }
  bool isSameByClass(Cube &c)
  {
    if (m_H == c.getH() && m_L == c.getL() && m_W == c.getW())
      return true;
    else
      return false;
  }
private:
  int m_L;
  int m_H;
  int m_W;
};

bool isSame(Cube &c1, Cube &c2)
{
  if (c1.getH() == c2.getH() && c1.getL() == c2.getL() && c1.getW() == c2.getW())
    return true;
  else
    return false;
}
int main()
{
  Cube c1;
  c1.setL(10);
  c1.setH(20);
  c1.setW(5);
  //cout << "立方体的面积是：" << c1.calculateS() << endl;
  //cout << "立方体的体积是：" << c1.calculateV() << endl;
  Cube c2;
  c2.setL(10);
  c2.setH(20);
  c2.setW(3);
  //bool ret = isSame(c1, c2);
  //if (ret)
  //  cout << "两个立方体大小相同" << endl;
  //else
  //  cout << "两个立方体大小不相同" << endl; 
  bool ret = c1.isSameByClass(c2);
  if (ret)
    cout << "两个立方体大小相同" << endl;
  else
    cout << "两个立方体大小不相同" << endl;
  system("pause");
  return 0;
}