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94 lines
8.4 KiB
HTML
94 lines
8.4 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">event.which</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/events/">事件</a> > <a href="/category/events/event-object/">事件对象</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/event.which/" target="_blank">event.which</a></span>
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</div><!-- .entry-meta -->
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</header><!-- .entry-header -->
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<!-- .entry-header -->
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<div class="entry-content">
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<article class="entry property" id="event-which1"><h2 class="section-title">
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<span>event.which</span><span class="returns">返回: <a href="/Types/#Number">Number</a></span>
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</h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>针对键盘和鼠标事件，这个属性能确定你到底按的是哪个键。 </p>
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<ul class="signatures"><li class="signature"><h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.1.3/">1.1.3</a></span>event.which</h4></li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p><code>event.which</code> 将 <code>event.keyCode</code> 和 <code>event.charCode</code> 标准化了。推荐用 <code>event.which</code> 来监视键盘输入。更多细节请参阅： <a href="https://developer.mozilla.org/en/DOM/event.charCode#Notes">event.charCode on the MDC</a>. </p>
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<p>
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<code>event.which</code>也将正常化的按钮按下(<code>mousedown</code> 和 <code>mouseup</code>events)，左键报告<code>1</code>，中间键报告<code>2</code>，右键报告<code>3</code>。使用<code>event.which</code>代替<code>event.button</code>。 </p>
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</div>
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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">
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<h4>Example: <span class="desc">记录按键</span>
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</h4>
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<div class="syntaxhighlighter xml ">
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</td>
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<td class="code">
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<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">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> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">input</span> <span class="attribute">id</span>=<span class="value">"whichkey"</span> <span class="attribute">value</span>=<span class="value">"type something"</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">div</span> <span class="attribute">id</span>=<span class="value">"log"</span>></span><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 class="string">'#whichkey'</span>).bind(<span class="string">'keydown'</span>,<span class="keyword">function</span>(e){</span></code></div></div><div class="container"><div class="line"><code> $(<span class="string">'#log'</span>).html(e.type + <span class="string">': '</span> + e.which );</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>
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</div>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div>
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<div class="entry-example" id="example-1">
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<h4>Example: <span class="desc">Log which mouse button was depressed.</span>
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<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">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> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">input</span> <span class="attribute">id</span>=<span class="value">"whichkey"</span> <span class="attribute">value</span>=<span class="value">"type something"</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">div</span> <span class="attribute">id</span>=<span class="value">"log"</span>></span><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="string">'#whichkey'</span>).bind(<span class="string">'mousedown'</span>,<span class="keyword">function</span>(e){</code></div></div><div class="container"><div class="line"><code> $(<span class="string">'#log'</span>).html(e.type + <span class="string">': '</span> + e.which );</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">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>
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</td>
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</table>
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</div>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div></section>
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</div></article> </div>
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</article> |