# 扩展资源和操作类

包括一系列资源在数据库中对应的记录和操作，这些模块的格式都很相似，一般包括若干个静态资源类和一个操作的mixin实现类。这个mixin类一般都是扩展核心plugin的资源、方法等支持，即提供扩展资源操作，一般继承自extension包中对应的基础类。


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