To index and then search files, you first need write code that converts your files into Document objects.

为了建立索引并搜索文件，首先你要写代码把你的文件转换成Document对象。

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Note: Blackberry was deemed to not have Universal search because it doesn't search files or Applications.

注意：Blackberry被判为不支持全局搜索的理由是它不能搜索文件或程序。

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The example creates a simple search engine written in PHP that can index and search files using Apache Lucene.

此示例创建了使用PHP编写的简单搜索引擎，可以使用Apache Lucene建立文件索引和进行搜索。

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Dotcom said Mega was a different beast to Megaupload, as the new site enables users to control exactly which users can access uploaded files, in contrast to its predecessor, which allowed users to search files, some of which contained copyrighted content allegedly without permission.

FORBES: Links 19 Jan: Kim Dotcom's PR System Is Certainly Working Well Over Mega

The search engine offers an "MP3 search" function on its home page, allowing users to search for music files on the Web.

FORBES: More Evil Than Google?

Ford currently has about 345, 000 employees, meaning it will potentially have to search through billions of files for anything suspicious.

BBC: The problems of finding filth