The meaning of static in C++(Practical C++)

The Meaning of static

The keyword static has many different meanings in C++. The table show how static can be used.

The meanings of static

Usage	Meaning
Variable outside the body of any function	The scope of the variable is limited to the file in which it is  declared.
Variable declaration inside a function	The variable is permanent. It is initialized once, and only one  copy is created even if the function is called recursively.
Function declaration	The scope of the function is limited to the file in which it is  declared.
Member variable	One copy of the variable is created per class (not one per  object).
Member function	Function can only access static members of the class.