Your small knife is quick, but mine faster.
你的刀子快，但我的更快。
If your experience is at all like mine, you'll sometimes find XPath only half as fast as native coding, especially for small problems, but up to an order of magnitude faster for others.
如果您的经验和我差不多，那么您时常会发现 XPath 只有原生编码一半的速度，对于一些小问题尤为显著，但是与其它语言相比速度还是要快一个级别。
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