how to declare global variables

1. Can a local variable be renamed with a global variable? A: Yes. Global blocking will be performed in some cases. To use global variables, you must use "::" A local variable can have the same name as a global variable. A local variable with the

Static can be used in either of the following ways:Process-orientedProgramDesignStatic andObject-Oriented ProgrammingStatic. The former applies to common variables and functions, and does not involve classes. The latter mainly describes the role of

JS in the declaration of global variables are mainly divided into explicit declarations or implicit declarations are described below respectively.Declaration Method One:The use of the Var (keyword) + variable name (identifier) is declared outside

JS in the declaration of global variables are mainly divided into explicit declarations or implicit declarations are described below respectively.Declaration Method One:The use of the VAR (keyword) + variable name (identifier) is declared outside

Differences between global variables, local variables, static global variables, and static local variables C ++ variables have different scopes based on different lifecycles at defined locations. They can be divided into six categories: global

JS in the declaration of global variables are mainly divided into explicit declarations or implicit declarations described separately below. Declaration Way One: The VAR (keyword) + variable name (identifier) is declared outside the function,

1. c ++ variables have different scopes based on different lifecycles of the defined positions. The scopes can be divided into six types: Global scope, local scope, statement scope, Class scope, namespace scope and file scope. From the scope: 1>

This article goes from the Script house: http://www.jb51.net/article/36548.htmJS in the declaration of global variables are mainly divided into explicit declarations or implicit declarations are described below respectively.Declaration Method

Swift global variables, local variables and type attributes, swift global variables Global and local variables The pattern described by the calculation property and property monitor can also be used for global variables and local variables. global

Original: http://www.cnblogs.com/chenglei/archive/2009/09/06/1561367.html Viewing from scopes: Global variables have global scope. Global variables can be used for all source files only if they are defined in one source file. Of course, other