为什么可以通过这种方式访问​​私有变量时无法访问基类的私有字段

Question

I was reading question mentioned at links below
Why are private fields private to the type, not the instance?
Access to private members of class
Access private field of a instance object

public class MyClass : ClassA
    {
        private object myObj;

        public object Field
        {
            get { return myObj; }
            set { myObj = value; }
        }

        public MyClass()
        { 
        }


        public MyClass(MyClass class1)
        {
            class1.myObj = 5;
            this.myObj = class1.myObj;
            class1.myObjOfClassA; // Why I can not access myObjOfClassA when I can access myObj of class1 object
        }
    }


    public class ClassA
    {
        private object myObjOfClassA;

    }

My question is
1) If we can access the private variables of Class as mentioned then why a class which extends another class can not access private variables of base class?

2) I believe when code or classes will be compiled then all the methods, variables etc of base class will be added to derived class. Am I right on this?

Answer 1

If we can access the private variables of Class as mentioned then why a class which extends another class can not access private variables of base class?

Because the variable isn't declared in the program text of the derived class, which is how private access is defined for Java and C#. (The details around nested classes vary between Java and C#; if you want details for one language or the other, please be more specific in your question.)

I believe when code or classes will be compiled then all the methods, variables etc of base class will be added to derived class. Am I right on this?

They're not added to the class, no. They're inherited by the derived class, and any instance of the derived class will have all the fields that are inherited - but that's not the same as them behaving as if they were declared in the derived class.