Use Qdebug to print pointer addresses under QT

Using Qdebug to print the pointer address under QT is a great way to use it.

   Qdebug () <<"parent--1"<<this->parent ();

The output is:

The output of the pointer precisely explains the physical address of the pointer (pending), and the type of the pointer.

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The problems that I encountered,

I put a widget in a parent widget,

And added a qscrollarea to the parent widget, and put the widget inside the Qscrollarea.

I need to use the function under the parent widget in a function of the child widget.

You need to use the this->parent pointer to get a pointer to the parent class.

But through the method of printing pointers above, it is found that the Qscrollarea pointer is obtained.

I know that Qscrollarea's parent is my father's widget, so I get the real parent widget with this->parent ()->parent ().

People can use this method to solve their own problems according to their own situation.

Use Qdebug to print pointer addresses under QT