本文中的这几个使用XPath与PHP的实用示例可供您实践，但必须假设您已经具备了先决条件中描述的那些条件。
This article has several working examples using XPath with PHP that you can practice, assuming that you have the prerequisite skills described in Prerequisites.
最好的知己要具备这样几个条件：首先，他们必须是愿意聆听你的人。
The perfect confidant is one who combines several factors:they need to be a good listener.
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