jQuery 选择器 API (参考)
属性选择器
[attribute|='value'], [attribute*='value'], [attribute~='value'], [attribute$='value'], [attribute='value'], [attribute!='value'], [attribute^='value'], [attribute], [attributeFilter1][attributeFilter2][attributeFilterN]
基本选择器
*, .class, element, #id, selector1, selector2, selectorN
基本筛选器
:animated, :eq(index), :eq(-index), :even, :first, :focus, :gt(index), :header, :lang(language), :last, :lt(index), :not(selector), :odd, :root, :target
子元素筛选器
:first-child, :first-of-type, :last-child, :last-of-type, :nth-child(index/even/odd/equation), :nth-last-child(index/even/odd/equation), :nth-last-of-type(index/even/odd/equation), :nth-of-type(index/even/odd/equation), :only-child, :only-of-type
内容筛选器
:contains(text), :empty, :has(selector), :parent
表单筛选器
:button, :checkbox, :checked, :disabled, :enabled, :file, :focus, :image, :input, :password, :radio, :reset, :selected, :submit, :text
层级选择器
parent > child, ancestor descendant, prev + next, prev ~ siblings