c++ - 类中的几个 "private"声明

Question

我正在查看一些开源代码，发现了这样一个类声明:

class Foo{
    private:
        // declarations
    private:
        // declarations
    private:
        // declarations
    public:
        // declarations
};

除了在非常的声明列表中提醒您成员的隐私外，您是否有任何时候想要做这样的事情？

Answer 1

这对于此类场景特别有用:

class SomeClass
{
   // COnstructors etc.
   public:
      SomeClass();
      SomeClass(const SomeClass& other);
      ~SomeClass();
      SomeClass operator=(const SomeClass& other);
      SomeClass(const OtherClass& other); 

   // Internal use functions. 
   private:
       int SomePrivateFunc();
       int OtherPrivateFunc();

   // Functions that "do stuff" with this class. 
   public:
       int SomeFunc();
       int OtherFunc();

   // Private member variables. 
   private:
       int x, y; 

   // Public member variables.
   public:
       int value; 
}

(像//Constructurs etc. 这样的注释只是为了表明这是“这些东西属于一起”的一部分)