虽然文件被放错了位置，但是这个例子强调了针对攻击者保护文件系统的重要性。
Although the files were erroneously placed, this example underscores the importance of guarding your file system against attackers.
权限必须被请求，定义了定制的权限，文件和内容提供者就可以受到保护。
Permissions must be requested, customized permissions defined, and file and content providers protected.
停止词（stopword）表、同义词表和保护词表的配置被放到外部文件中
External file-based configuration of stopword lists, synonym lists, and protected word lists
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