如何使用select选中?

How to use select chosen?

我在 table

中有这一行
<td class="chosen-container chosen-container-single chosen-with-drop chosen-container-active" style="width: 100%" title="">
    <a class="chosen-single chosen-default" tabindex="-1">
        <span>Choose a country...</span>
        <div><b></b></div>
    </a>
    <div class="chosen-drop">
        <div class="chosen-search">
            <input type="text" autocomplete="off" tabindex="2" />
        </div>
        <select class="chosen-results">
            <option value=""></option>
            <option class="active-result" data-option-array-index="1">United States</option>
            <option class="active-result" data-option-array-index="2">United Kingdom</option>
            <option class="active-result" data-option-array-index="3">Afghanistan</option>
            <option class="active-result" data-option-array-index="4">Aland Islands</option>
            <option class="active-result" data-option-array-index="5">Albania</option>
        </select>
    </div>
</td>

这段代码有什么问题?我需要实现选择的标准 select.

你的意思是这样的?

fiddle

<option value="" class="placeholder">select</option>