AIR扩展类，适用于想使用Delphi编写AIR扩展的使用者，官方示例是C语言，已经翻译成了Delphi的，WinXP，Win7下测试通过。使用方法见单元内的注释。-AIR extension classes for those who want to use Delphi to write AIR extension user, the official example is the C language, has been translated into the Delphi, WinXP, Win7 under test. Use, see unit notes.