Crass意指Crage和Assage两个工具的集合。Crage是使用cui插件扩展的游戏资源提取器；而Assage是使用aui插件扩展的游戏资源封装程序。
只要正确使用cui或aui插件，就可以提取或封装各自对应的封包文件。
提取时使用的程序是crage.exe，它是一个控制台程序；如果你更习惯使用图形界面，可以使用CrageGUI，它是crage.exe的一个GUI包装程序。有关crage的更多使用说明参见FAQ.txt和INSTALL.txt；另外document中是每个cui插件的详细信息，解包前应当阅读。
注：因为时间和难度因素，暂时不考虑开发Assage和aui。
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