flex4 下面的 基本组件 导航组件 容器组件的用法 flex做出的很好的效果 flex基础程序-flex4 the following components of the basic components of the navigation component container to make good use of the effect of flex flex based program

英文版《Developing_Flex_4_Components.pdf》，全面详细介绍flex4的组件设计开发-English " Developing_Flex_4_Components.pdf" , full details of the component design and development flex4