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继承构造函数调用顺序

Base class constructors are always called in the derived class constructors. Whenever you create derived class object, first the base class default constructor is executed and then the derived class’s constructor finishes execution.

基类构造函数总是在派生类构造函数中调用。 无论何时创建派生类对象，都将首先执行基类的默认构造函数，然后派生类的构造函数完成执行。

要记住的要点

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Points to Remember

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1. Whether derived class’s default constructor is called or parameterised is called, base class’s default constructor is always called inside them.

   无论是调用派生类的默认构造函数还是参数化，都始终在它们内部调用基类的默认构造函数。

3. To call base class’s parameterised constructor inside derived class’s parameterised constructo, we must mention it explicitly while declaring derived class’s parameterized constructor.

   要在派生类的参数化构造函数内部调用基类的参数