Created
January 19, 2019 11:07
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| 语法 描述 | |
| $(this) 当前 HTML 元素 | |
| $("p") 所有 <p> 元素 | |
| $("p.intro") 所有 class="intro" 的 <p> 元素 | |
| $(".intro") 所有 class="intro" 的元素 | |
| $("#intro") id="intro" 的元素 | |
| $("ul li:first") 每个 <ul> 的第一个 <li> 元素 | |
| $("[href$='.jpg']") 所有带有以 ".jpg" 结尾的属性值的 href 属性 | |
| $("div#intro .head") id="intro" 的 <div> 元素中的所有 class="head" 的元素 |
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