static function in class

A static member cannot be assigned in the class body because it is shared by all objects of that class. You assign a value to it in an object, and that member of the other object will also change. To avoid confusion, it is not necessary to assign a

Java Tour (Fri)--this,static, keyword, main function, encapsulating tool class, generating Javadoc manual, static code block Have a lot of weekend, continue to study One. this keyword Used to distinguish between local

When a data member of a class is declared static, the static data member can only be defined once, and is shared by all objects of the same kind. Each object has a copy of every regular data member in the class, but only one instance of the static

C ++ Primer study note _ 22 _ class and data abstraction (8) -- static member variable, static member function, class/object size, _ 22 -- static I. static Each static data member is an object associated with the class and is not associated with the

1. Index of ClassAn index is a set of get and set front accessors that support referencing an object as a method of consuming an array element. An index is usually a number of data members, and it always exists as a case member of a Lei class.

Static and static keywords in C ++ Static means static. Here I want to systematically describe the role of the static keyword. Of course, it mainly describes the role of the static keyword in the development languages C and C ++. For other functions,

1.mysql Package ClassDefine parameters for initializing database connections in a constructor "because the parameter passed in when instantiating an object is the only parameter entry for that object"But instead of redundant definitions in the

PHP static member variables and non-static member variables, php static. PHP static member variables and non-static member variables. php static data members can be divided into static variables and non-static variables. static Member: the static

Static Keywords of C ++ The static function of C ++ has two usage methods: static in process-oriented programming and static in object-oriented programming. The former applies to common variables and functions, and does not involve classes. The

In this regard, let me begin by saying something about:The callback function must be a static member function or a global function to implement a callback function, presumably because a normal C + + member function implies a function parameter, the