Features
Features
在磁盘上，一个基于eclipse的product是一些插件的集合。每个插件包含的代码提供了一些产品的功能。一个插件的代码和其他文件安装在本地电脑上，会自动激活。
A product's plug-ins are grouped together into features.A feature is a unit of separately downloadable and installable functionality.
网上的资料是这么说的：features目录下方的都是plugin的配置信息，启动信息还有一些图片等一些资源，而plugins目录下则方的是jar包，也就是实现插件功能的代码包，还有一些必要的配置信息等。
从eclipse平台模块化编程的根本特性可以知道，it easy to install additional features and plug-ins into an Eclipse based product, and to update the product's existing features and plug-ins。the Eclipse platform's install and update support found in the Help menu.
help的about按钮可以Check for Updates and Install New Software。
相关的概念
相关的任务
Installation Details for Features
Installation Details for Plug-ins
Updating the installation
Installing new software
Uninstalling software
Reverting to a previous install configuration
