网易云课堂_C++开发入门到精通_章节4:运算符重载

	Person& Person::operator=(const Person& other)
	{
		//检查自赋值
		if (this == &other)
		{
			return *this;
		}
		//释放原有的内存资源
		delete[]m_data;

		int length = strlen(other.m_data);
		m_data = new char[length + 1];
		strcpy(m_data, other.m_data);
		//返回本对象的引用
		return *this;
	}

class Increase
{
public:
	Increase(int x) :value(x)
	{

	}
	Increase& operator ++();//前增量
	Increase operator ++(int);//后增量
private:
	int value;
};

Increase& Increase::operator ++()//前增量
{
	value++;//先增量
	return *this;//再返回有对象
}

Increase Increase::operator ++(int)//后增量
{
	Increase temp(*this);//临时对象存放原有对象值
	value++;//原有对象增量修改
	return temp;//返回原有对象值
}