Flex:Application&Variable Scope(this owner parent parentApp parentDoc outerDoc)

关键字： this owner parent  parentApplication parentDocument outerDocument 等。

Flex/AIR Application Scope Tips:
http://devgirl.org/2009/01/27/flexair-application-scope-tips/

Application Scope In Flex:
http://mallikvarma.wordpress.com/2009/11/13/application-scope-in-flex/



Flex Variable Scope：
http://www.roseindia.net/tutorial/flex/flex4/flex-variable-scope.html

引用

Scope of the variable defines the accessibility of the variable across the application. The global variable has global access to the application and local variable is restricted to the block of code only. The variable defined outside of the class or function is declared as global. Variables defined inside a function or class is assigned the scope of the function or class itself.

有对parentDocument和outerDocument到实例讲解的本博导航：
http://wuaner.iteye.com/blog/1054147