这么做将会丢失对真正的模块搜索路径列表对象的引用，同时指向了一个新创建的对象，而这个对象将不会其任何作用。

All that does is lose the reference to the actual node module lookup paths, and create a new reference to some other thing that isn't used for anything.

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列表2显示了此搜索模块的代码。

Listing 2 shows the code for the search module.

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通过此模块生成索引供搜索模块使用，从而实现全站搜索的功能。

The index generated by this module can then be used by the search module to provide an integrated full-text search experience for a web site.

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