c++ (运算符重载 && ++运算符重载)

​​    c++ (运算符重载 && ++运算符重载)    ​​

 

c++ (运算符重载 && ++运算符重载)

class Person
{
public:
  Person(){
    m_Num = 10;
  }
  //前置++ 重载
  Person& operator++()
  {
    this->m_Num++;
    return *this;
  }
  //后置++ 重载
  Person operator++(int)
  {
    //先保存下目前的数据
    Person tmp = *this;
    m_Num++;
    return tmp;
  }
  int m_Num;
};
ostream& operator<<(ostream& cout,Person p)
{
  cout << p.m_Num;
  return cout;
}
void  text01()
{
  Person p1;
//  ++p1;//前置++
//  p1++;//后置++
  cout << ++p1 << endl;
  cout << p1++ << endl;
  cout << p1 << endl;
}