我的建议是，如果你不介意仅限于html 5兼容的浏览器，只需使用:

<input type="search" />

JS小提琴演示

不可否认，在Chromium (Ubuntu 11.04)中，这确实要求在明文图像/功能出现之前在输入元素中有文本。

参考:

深入HTML 5:一种疯狂的形式。 输入类型=搜索-搜索字段(新)HTML5。

如果你想让它像谷歌一样，那么你应该知道“X”实际上并不在<input>中——它们是彼此相邻的，外部容器样式看起来像文本框。

HTML:

<form>
    <span class="x-input">
        <input type="text" class="x-input-text" />
        <input type="reset" />
    </span>
</form>

CSS:

.x-input {
    border: 1px solid #ccc;
}

.x-input input.x-input-text {
    border: 0;
    outline: 0;
}

例如:http://jsfiddle.net/VTvNX/

根据MDN， <input type="search" />目前在所有现代浏览器中都被支持:

<输入类型=“搜索”=“清除此”。/>

但是，如果你想要在不同浏览器中保持一致的不同行为，这里有一些轻量级的替代方案，只需要JavaScript:

选项1 -始终显示'x':(示例如下)

Array.prototype.forEach.call(document.querySelectorAll('.clearable-input>[data-clear-input]'), function(el) { el.addEventListener('click', function(e) { e.target.previousElementSibling.value = ''; }); }); .clearable-input { position: relative; display: inline-block; } .clearable-input > input { padding-right: 1.4em; } .clearable-input > [data-clear-input] { position: absolute; top: 0; right: 0; font-weight: bold; font-size: 1.4em; padding: 0 0.2em; line-height: 1em; cursor: pointer; } .clearable-input > input::-ms-clear { display: none; } <p>Always display the 'x':</p> <div class="clearable-input"> <input type="text" /> <span data-clear-input>&times;</span> </div> <div class="clearable-input"> <input type="text" value="Clear this." /> <span data-clear-input>&times;</span> </div>

选项2 -只显示'x'当鼠标悬停在字段上时:(示例如下)

Array.prototype.forEach.call(document.querySelectorAll('.clearable-input>[data-clear-input]'), function(el) { el.addEventListener('click', function(e) { e.target.previousElementSibling.value = ''; }); }); .clearable-input { position: relative; display: inline-block; } .clearable-input > input { padding-right: 1.4em; } .clearable-input:hover > [data-clear-input] { display: block; } .clearable-input > [data-clear-input] { display: none; position: absolute; top: 0; right: 0; font-weight: bold; font-size: 1.4em; padding: 0 0.2em; line-height: 1em; cursor: pointer; } .clearable-input > input::-ms-clear { display: none; } <p>Only display the 'x' when hovering over the field:</p> <div class="clearable-input"> <input type="text" /> <span data-clear-input>&times;</span> </div> <div class="clearable-input"> <input type="text" value="Clear this." /> <span data-clear-input>&times;</span> </div>

选项3 -如果输入元素有值，只显示'x'(示例如下)

Array.prototype.forEach.call(document.querySelectorAll('.clearable-input'), function(el) { var input = el.querySelector('input'); conditionallyHideClearIcon(); input.addEventListener('input', conditionallyHideClearIcon); el.querySelector('[data-clear-input]').addEventListener('click', function(e) { input.value = ''; conditionallyHideClearIcon(); }); function conditionallyHideClearIcon(e) { var target = (e && e.target) || input; target.nextElementSibling.style.display = target.value ? 'block' : 'none'; } }); .clearable-input { position: relative; display: inline-block; } .clearable-input > input { padding-right: 1.4em; } .clearable-input >[data-clear-input] { display: none; position: absolute; top: 0; right: 0; font-weight: bold; font-size: 1.4em; padding: 0 0.2em; line-height: 1em; cursor: pointer; } .clearable-input > input::-ms-clear { display: none; } <p>Only display the 'x' if the `input` element has a value:</p> <div class="clearable-input"> <input type="text" /> <span data-clear-input>&times;</span> </div> <div class="clearable-input"> <input type="text" value="Clear this." /> <span data-clear-input>&times;</span> </div>

使用jquery插件，我已经适应了我的需要，添加自定义选项和创建一个新的插件。你可以在这里找到它: https://github.com/david-dlc-cerezo/jquery-clearField

下面是一个简单用法的例子:

<script src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script src='http://code.jquery.com/ui/1.10.3/jquery-ui.js'></script>
<script src='src/jquery.clearField.js'></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
<link rel="stylesheet" href="css/jquery.clearField.css">

<table>
    <tr>
        <td><input name="test1" id="test1" clas="test" type='text'></td>
        <td>Empty</td>
    </tr>
    <tr>
        <td><input name="test2" id="test2" clas="test" type='text' value='abc'></td>
        <td>Not empty</td>
    </tr>
</table>

<script>
    $('.test').clearField();
</script>

获得像这样的东西:

我已经在CSS中创建了一个可清除的文本框。它不需要javascript代码使其工作

下面是演示链接

http://codepen.io/shidhincr/pen/ICLBD

您可以使用这些命令(没有引导)。

Array.from(document.querySelectorAll('.search-field')).forEach(field => { field.querySelector('span').addEventListener('click', e => { field.querySelector('input').value = ''; }); }); :root { --theme-color: teal; } .wrapper { width: 80%; margin: 0 auto; } div { position: relative; } input { background:none; outline:none; display: inline-block; width: 100%; margin: 8px 0; padding: 13px 15px; padding-right: 42.5px; border: 1px solid var(--theme-color); border-radius: 5px; box-sizing: border-box; } span { position: absolute; top: 0; right: 0; margin: 8px 0; padding: 13px 15px; color: var(--theme-color); font-weight: bold; cursor: pointer; } span:after { content: '\2716'; } <div class="wrapper"> <div class="search-field"> <input placeholder="Search..." /> <span></span> </div> </div>