XPath 函数 | XPath Functions 目录 boolean() ceiling() choose() concat() contains() count() current() document() element-available() false() floor() format-number() function-available() Functions generate-id() id() key() lang() last() local-name() name() namespace-uri() normalize-space() not() number() position() round() starts-with() string() string-length() substring() substring-after() substring-before() sum() system-property() translate() true() unparsed-entity-url()
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