One thing to note is that the jQuery closest method works more like XPath's ancestor-or-self; it will include the current node if it matches.
有一件事要注意，jQueryclosest方法的行为很像XPath的ancestor - or - self；如果匹配的话，它将包含当前节点。
Like ancestor in XPath, descendant has a descendant-or-self for those special cases where the selected node might match what you're looking for (see Figure 3).
对于那些特殊情况，即选择的节点可能匹配您正在寻找的元素，那么跟XPath中的祖先一样，子孙也具有descendant - or - self(参见图3)。
Like ancestor in XPath, descendant has a descendant-or-self for those special cases where the selected node might match what you're looking for (see Figure 3).
对于那些特殊情况，即选择的节点可能匹配您正在寻找的元素，那么跟XPath中的祖先一样，子孙也具有descendant - or - self(参见图3)。
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