mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-08 15:04:05 +08:00
89 lines
12 KiB
HTML
89 lines
12 KiB
HTML
<article class="" id="post-">
|
||
<header class="entry-header">
|
||
<h1 class="entry-title">:radio Selector</h1>
|
||
<div class="entry-meta">
|
||
所属分类：<span class="category"><a href="/category/selectors/">选择器</a> > <a href="/category/selectors/form-selectors/">表单</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/selectors/">选择器</a> > <a href="/category/selectors/jquery-selector-extensions/">jQuery 扩展</a></span>
|
||
<span class="pull-right">英文文档：<a href="https://api.jquery123.com/radio-selector/" target="_blank">:radio Selector</a></span>
|
||
</div><!-- .entry-meta -->
|
||
</header><!-- .entry-header -->
|
||
<!-- .entry-header -->
|
||
<div class="entry-content">
|
||
<article class="entry selector" id="radio1"><h2 class="section-title"><span>radio selector</span></h2>
|
||
<div class="entry-wrapper">
|
||
<p class="desc"><strong>描述: </strong>选择所有类型为单选框的元素。</p>
|
||
<ul class="signatures"><li class="signature"><h4 class="name">
|
||
<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>jQuery( ":radio" )</h4></li></ul>
|
||
<div class="longdesc" id="entry-longdesc">
|
||
<p><code>$(':radio')</code>等价于<code>$('[type=radio]')</code>。如同其他伪类选择器（那些以“:”开始），建议使用此类选择器时，跟在一个标签名或者其它选择器后面，默认使用了全局通配符选择器 "*"。换句话说<code>$(':radio')</code> 等同于 <code>$('*:radio')</code>，所以应该使用<code>$('input:radio')</code>。</p>
|
||
<p>要选择一个单选按钮相关的设置，你可以使用：<code>$('input[name=gender]:radio')</code></p>
|
||
</div>
|
||
<h3>Additional Notes（其他注意事项）:</h3>
|
||
<div class="longdesc"><ul>
|
||
<li>
|
||
因为<code>:radio</code> 是一个 jQuery 延伸出来的选择器，并不是的CSS规范的一部分，使用<code>:radio</code> 查询不能充分利用原生DOM提供的<code>querySelectorAll()</code> 方法来提高性能。为了当使用<code>:radio</code> 的时候在现代浏览器上获得更佳的性能，首先使用纯CSS选择器选择元素，然后使用<code>[type="radio"]</code>代替.
|
||
</li></ul></div>
|
||
<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
|
||
<h4><span class="desc">查找所有单选按钮。</span></h4>
|
||
<div class="syntaxhighlighter xml ">
|
||
<table>
|
||
<tbody>
|
||
<tr>
|
||
<td class="gutter">
|
||
<div class="line n1">1</div>
|
||
<div class="line n2">2</div>
|
||
<div class="line n3">3</div>
|
||
<div class="line n4">4</div>
|
||
<div class="line n5">5</div>
|
||
<div class="line n6">6</div>
|
||
<div class="line n7">7</div>
|
||
<div class="line n8">8</div>
|
||
<div class="line n9">9</div>
|
||
<div class="line n10">10</div>
|
||
<div class="line n11">11</div>
|
||
<div class="line n12">12</div>
|
||
<div class="line n13">13</div>
|
||
<div class="line n14">14</div>
|
||
<div class="line n15">15</div>
|
||
<div class="line n16">16</div>
|
||
<div class="line n17">17</div>
|
||
<div class="line n18">18</div>
|
||
<div class="line n19">19</div>
|
||
<div class="line n20">20</div>
|
||
<div class="line n21">21</div>
|
||
<div class="line n22">22</div>
|
||
<div class="line n23">23</div>
|
||
<div class="line n24">24</div>
|
||
<div class="line n25">25</div>
|
||
<div class="line n26">26</div>
|
||
<div class="line n27">27</div>
|
||
<div class="line n28">28</div>
|
||
<div class="line n29">29</div>
|
||
<div class="line n30">30</div>
|
||
<div class="line n31">31</div>
|
||
<div class="line n32">32</div>
|
||
<div class="line n33">33</div>
|
||
<div class="line n34">34</div>
|
||
<div class="line n35">35</div>
|
||
<div class="line n36">36</div>
|
||
<div class="line n37">37</div>
|
||
<div class="line n38">38</div>
|
||
<div class="line n39">39</div>
|
||
<div class="line n40">40</div>
|
||
<div class="line n41">41</div>
|
||
<div class="line n42">42</div>
|
||
<div class="line n43">43</div>
|
||
<div class="line n44">44</div>
|
||
<div class="line n45">45</div>
|
||
</td>
|
||
<td class="code">
|
||
<pre><div class="container"><div class="line"><code><span class="doctype"><!DOCTYPE html></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">html</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">style</span>></span><span class="css"></span></code></div></div><div class="container"><div class="line"><code> <span class="tag">textarea</span> <span class="rules">{ <span class="rule"><span class="attribute">height</span>:<span class="value"><span class="number">25</span>px;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">style</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">form</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"button"</span> <span class="attribute">value</span>=<span class="value">"Input Button"</span>/></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"checkbox"</span> /></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"file"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"hidden"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"image"</span> /></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"password"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"radio"</span> <span class="attribute">name</span>=<span class="value">"asdf"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"radio"</span> <span class="attribute">name</span>=<span class="value">"asdf"</span> /></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"reset"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"submit"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"text"</span> /></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">select</span>></span><span class="tag"><<span class="title">option</span>></span>Option<span class="tag"><<span class="title">option</span>/></span><span class="tag"></<span class="title">select</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">textarea</span>></span><span class="tag"></<span class="title">textarea</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">button</span>></span>Button<span class="tag"></<span class="title">button</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">form</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">script</span>></span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code><span class="keyword">var</span> input = $(<span class="string">"form input:radio"</span>)</code></div></div><div class="container"><div class="line"><code> .wrap(<span class="string">'<span></span>'</span>)</code></div></div><div class="container"><div class="line"><code> .parent()</code></div></div><div class="container"><div class="line"><code> .css({background:<span class="string">"yellow"</span>, border:<span class="string">"3px red solid"</span>});</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>$(<span class="string">"div"</span>).text(<span class="string">"For this type jQuery found "</span> + input.length + <span class="string">"."</span>)</code></div></div><div class="container"><div class="line"><code> .css(<span class="string">"color"</span>, <span class="string">"red"</span>);</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"form"</span>).submit(<span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span> <span class="keyword">return</span> <span class="literal">false</span>; }); <span class="comment">// so it won't submit</span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">html</span>></span></code></div></div></pre>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
<h4>Demo:</h4>
|
||
<div class="demo code-demo"></div>
|
||
</div></section>
|
||
</div></article> </div>
|
||
</article> |