C static function

1, Java static method, mainly for the user to facilitate the call. Accessed by using the "class name. Method Name" mode.

For example, most of the methods in the math class are static.

2, C in the function before the addition of static is mainly to limit the scope. As follows:

A "Static" function tells the compiler that other program files cannot see or access the function. Only other functions from the same file can see a static function. Therefore, to declare a function local only to the file the programmer defines it in.

C static function