jQuery代码$（"p.intro"）表示的含义是（ ）。
- A.选取＜p>元素
- B.选取所有class="intro"的＜p>元素
- C.选取所有id="intro"的＜p>元素
- D.选取所有id="p.intro"的元素
正确答案及解析
正确答案
解析
本题考查jQuery代码表示含义。
$表示选择符，对应以下几种示例：
$（"this"）选择当前元素
$（"p"）选择所有p标签的元素
$（"p.test"）选择所有class=“test”的＜p>元素
$（"#test"）选择所有id=“test”的元素
综合分析，本题选B。
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