What is the data sharing and protection of C++?
C++ data sharing and protection is like, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.
1. Scope
Scope: the area where an identifier is valid in the body of the program.
Function prototype (function declaration) scope
For example, the function prototype void Print (int a); the variable an is scoped around the parentheses.
Local scope
For example, the following function definition, the scope of the variable an is between the curly braces.
Void Print () {int a = 0 Porte STD
