案例：jQuery案例     状态：可编辑再运行    进入竖版
 运行结果　
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<!DOCTYPE html>
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<html>
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<head>
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  <style>p { color:red; }</style>
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  <script type="text/javascript" src="/js/jquery.js"></script>
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</head>
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​
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<body>
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<form method="post" action="">
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  <fieldset>
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    <div>
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      <label for="two">2</label>
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      <input type="checkbox" value="2" id="two" name="number[]">
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    </div>
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    <div>
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      <label for="four">4</label>
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      <input type="checkbox" value="4" id="four" name="number[]">
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    </div>
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    <div>
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      <label for="six">6</label>
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      <input type="checkbox" value="6" id="six" name="number[]">
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    </div>
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    <div>
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      <label for="eight">8</label>
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      <input type="checkbox" value="8" id="eight" name="number[]">
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    </div>
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  </fieldset>
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</form>
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​
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<p><b>Values: </b></p>
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​
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<script>
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  $("p").append($(':checkbox').map(function() {
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    return this.id;
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  }).get().join(','));
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</script>
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​
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</body>
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</html>
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​