Understanding of this pointer

A classic pointer on this answer:　

　   When you enter a house,

　　You can see tables, chairs, floors,

　　But the house you can not see the whole picture.

　　For instance of a class, the

　　You can see it's member functions, member variables,

　　But the example itself?

　　this is a pointer, it always points you in this instance itself.

Reference Links: https://blog.csdn.net/she8275081/article/details/6120997/