AS 2.0 與 AS 3.0 指令對照表

Adobe 官方網站上的 AS 2.0 與 AS 3.0 指令對照表，還有指令的使用說明
The following table describes the differences between ActionScript 2.0 and 3.0.
http://livedocs.adobe.com/flex/2/langref/migration.html