However, jQuery has a rather complex and complete selector syntax that allows you to select nearly any combination of elements in a single selector.
然而，jQuery提供了更为复杂和完整的选择器语法，允许我们在单个选择器中选择几乎所有的元素组合。
The event selector syntax is a subset of the W3C XPath (this is not a coincidence as the Common Base event specification describes events in terms of their serialization as XML documents).
事件选择器语法是W3C XPath的子集(这与公共基础事件规范将事件序列化为XML文档来描述事件是不一致的)。
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