AS3之ApplicationDomain 模块化编程-The ApplicationDomain AS3 modular programming

美国麻省理工大学为小孩教育写的图形化编程软件，公布了源码。 用户有需要可以在该源码基础上添加自己的模块。-Massachusetts Institute of technology for children to write graphical programming software, announced the source code. Users need to be able to add their own modules on the basis of the source.