假设您某一天发现光标不受控制地移动，或者发现用户数据的打包文件被移动到FTP服务器。
Say you come in one day and see a cursor moving independently or find packaged files of user data moved to the FTP server.
浏览器可以以 URL 形式询问服务器不同的问题并将打包成请求参数和 POST 数据的提示一并传递，但它其实并不 “讲” 服务器的语言。
The browser can ask the server different questions in the form of URLs and pass along hints packaged as request parameters and POST data, but it doesn't really speak the server's language.
预先打包及预先集成的数据库服务器、消息服务器及目录服务器
Prepackaged and preintegrated database, messaging, and directory servers
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