Global variable Initialization

The global variable is initialized to 0, which is a concept in mind for a long time. The global object is understood as a class with constructor that can initialize member variables in the constructor. I also use this principle to write programs by myself.

In fact, for global objects, the object's member variables are also initialized to 0 by the compiler.

Sample Code:

ClassA {Public:IntM_value;}; A G_A;VoidMain (){IntValue1 =G_a.m_value; a B;IntValue2 =B. m_value ;}

The member variables of the local object are not initialized.

Global variable Initialization