您可以很自由地在持久性类中放置您喜欢的任何方法 - 注册表只是在各次对动态页面的调用之间将实例保存在内存中。
You are free to put whatever methods you like in persistence classes -- the registry simply holds instances in memory between different calls to dynamic pages.
这样一来，每个动态页面都可以利用您编写的持久性类。
This way, every dynamic page can utilize persistence classes you write.
与此同时，基于互联网的信息搜索和获取面对的已不再是单纯的静态页面，而是不断更新的动态页面，如博客、论坛类网站。
In addition, Internet-based information searching and accessing are no longer facing a simple static page, but the up-to-date dynamic pages, such as blog, forum websites.
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