Finally, you looked again at a sample Web application, and saw that with the addition of Ajax modules, you could read and delete messages without reloading the page.
最后，您再次重温了这个示例Web应用程序，并体会了增加了Ajax模块后，您将能在无需重载页面的情况下读取和删除消息。
This is required if you want to install modules from the gallery. (We recommend that you remove the read/write permissions for production sites.)
如果你希望通过 gallery 安装 modules，这是必须的配置，对于产品网站，我们建议移除 Read/Write 权限。
This is how the EXIF module allows other modules to read EXIF data from image files.
这就是EXIF模块允许其他模块读取图片文件数据的原因了。
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