uTools-Manuals/docs/jQuery/select.html

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<h1 class="entry-title">.select()</h1>
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						所属分类：<span class="category"><a href="/category/events/">事件</a> &gt; <a href="/category/events/form-events/">表单事件</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/forms/">表单</a></span>
<span class="pull-right">英文文档：<a href="https://api.jquery123.com/select/" target="_blank">.select()</a></span>
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<span class="name">.select( handler(eventObject) )</span><span class="returns">返回: <a href="/Types/#jQuery">jQuery</a></span>
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<p class="desc"><strong>描述: </strong>为 JavaScript 的 "select" 事件绑定一个处理函数，或者触发元素上的该事件。</p>
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<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>.select( handler(eventObject) )</h4>
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<div><strong>handler(eventObject)</strong></div>
<div>类型: <a href="/Types/#Function">Function</a>()</div>
<div>每次事件触发时会执行的函数。</div>
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<span class="version-details">添加的版本: <a href="/category/version/1.4.3/">1.4.3</a></span>.select(  [eventData ], handler(eventObject) )</h4>
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<div><strong>eventData</strong></div>
<div>类型: <a href="/Types/#PlainObject">PlainObject</a>
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<div>一个对象，它包含的数据键值对映射将被传递给事件处理程序。</div>
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<div><strong>handler(eventObject)</strong></div>
<div>类型: <a href="/Types/#Function">Function</a>()</div>
<div>每次事件触发时会执行的函数。</div>
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<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>.select()</h4>
<ul><li><div class="null-signature">这个方法不接受任何参数。</div></li></ul>
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<p>这个函数的前两个用法是 <code>.bind('select', handler)</code> 的快捷方式，第3个不带参数的用法是 <code>.trigger('select')</code> 的快捷方式。</p>
<p>当用户在一个元素中进行文本选择时，这个元素上的<code>select</code>事件就会被触发。此事件只能用在<code>&lt;input type="text"&gt;</code> 和<code>&lt;textarea&gt;</code>。
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<p>举例来说，请看下面的HTML：</p>
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<div class="line n1">1</div>
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<pre><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">form</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">input</span> <span class="attribute">id</span>=<span class="value">"target"</span> <span class="attribute">type</span>=<span class="value">"text"</span> <span class="attribute">value</span>=<span class="value">"Hello there"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">form</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">div</span> <span class="attribute">id</span>=<span class="value">"other"</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  Trigger the handler</code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">div</span>&gt;</span></code></div></div></pre>
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<p>这个事件处理程序可以绑定到文本框</p>
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<pre><div class="container"><div class="line"><code>$(<span class="string">'#target'</span>).select(<span class="keyword">function</span>() {</code></div></div><div class="container"><div class="line"><code>  alert(<span class="string">'Handler for .select() called.'</span>);</code></div></div><div class="container"><div class="line"><code>});</code></div></div></pre>
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<p>现在文本框中任何字符被选择，警告将被显示。仅仅设置插入点的位置将不会触发该事件。应用不带参数的<code>.select()</code>，我们可以手动触发这个事件:</p>
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<pre><div class="container"><div class="line"><code>$(<span class="string">'#other'</span>).click(<span class="keyword">function</span>() {</code></div></div><div class="container"><div class="line"><code>  $(<span class="string">'#target'</span>).select();</code></div></div><div class="container"><div class="line"><code>});</code></div></div></pre>
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<p>这些代码执行后，点击触发按钮同样警报显示:</p>
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<span class="output">Handler for .select() called.</span>
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<p>此外，默认文本域上的<code>select</code>动作被解除，所以整个文本字段将被选中。</p>
<blockquote><p>用于检索当前选定文本的方法在各个浏览器中是不同的。jQuery的一个插件都提供跨平台的解决方案。</p></blockquote>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
<h4>Example: <span class="desc">在输入框中文本被选中时做一件事情时：</span>
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<div class="line n1">1</div>
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<pre><div class="container"><div class="line"><code><span class="doctype">&lt;!DOCTYPE html&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">html</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">style</span>&gt;</span><span class="css"></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">p</span> <span class="rules">{ <span class="rule"><span class="attribute">color</span>:<span class="value">blue;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">div</span> <span class="rules">{ <span class="rule"><span class="attribute">color</span>:<span class="value">red;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">style</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>&gt;</span><span class="javascript"></span><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">p</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>    Click and drag the mouse to select text in the inputs.</code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">p</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"text"</span> <span class="attribute">value</span>=<span class="value">"Some text"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"text"</span> <span class="attribute">value</span>=<span class="value">"to test on"</span> /&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">div</span>&gt;</span><span class="tag">&lt;/<span class="title">div</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">script</span>&gt;</span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code>$(<span class="string">":input"</span>).select( <span class="function"><span class="keyword">function</span> <span class="params">()</span> {</span></code></div></div><div class="container"><div class="line"><code>  $(<span class="string">"div"</span>).text(<span class="string">"Something was selected"</span>).show().fadeOut(<span class="number">1000</span>);</code></div></div><div class="container"><div class="line"><code>});</code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">html</span>&gt;</span></code></div></div></pre>
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<h4>Demo:</h4>
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<h4>Example: <span class="desc">To trigger the select event on all input elements, try:</span>
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<pre><div class="container"><div class="line"><code>$(<span class="string">"input"</span>).select();</code></div></div></pre>
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