C++ 类的初始化列表

class Animal
{
public:
    Animal(int weight,int height):       //A初始化列表
      m_weight(weight),
      m_height(height)
    {
    }
    Animal(int weight,int height)       //B函数体内初始化
    {
        m_weight = weight;
        m_height = height;
    }
private:
    int m_weight;
    int m_height;
};

类的初始化列表一般是为了性能而做的，这个知识点等掌握了再来更新------------------------------------------------