轮询 FTP 服务器上的 FileInput 节点内容

Polling an FTP server for FileInput node content

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区域(Region)是Drupal显示主题化区块和节点内容的地方。

Regions are areas into which themed blocks and node content are rendered by Drupal.

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此方法用于读取、转换（如果需要）和返回当前节点内容中的原子值项。

This method is used to read, convert if necessary, and return atomic value items from the current node content.

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