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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/html/element/optgroup/index.html | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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Diffstat (limited to 'files/zh-cn/web/html/element/optgroup/index.html')
-rw-r--r-- | files/zh-cn/web/html/element/optgroup/index.html | 127 |
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diff --git a/files/zh-cn/web/html/element/optgroup/index.html b/files/zh-cn/web/html/element/optgroup/index.html new file mode 100644 index 0000000000..8ea407b546 --- /dev/null +++ b/files/zh-cn/web/html/element/optgroup/index.html @@ -0,0 +1,127 @@ +--- +title: <optgroup> +slug: Web/HTML/Element/optgroup +tags: + - HTML + - HTML表单 + - 元素 + - 参考 + - 表单 +translation_of: Web/HTML/Element/optgroup +--- +<p>{{HTMLRef}}</p> + +<p><strong>HTML元素 <code><optgroup></code> </strong>为{{HTMLElement("select")}} 元素中的选项创建分组。</p> + +<p>{{EmbedInteractiveExample("pages/tabbed/optgroup.html", "tabbed-standard")}}</p> + +<table class="properties"> + <tbody> + <tr> + <th scope="row"><a href="/en-US/docs/HTML/Content_categories" title="HTML/Content_categories">内容分类</a></th> + <td>无</td> + </tr> + <tr> + <th scope="row">允许的内容</th> + <td>0或多个 {{HTMLElement("option")}} 元素</td> + </tr> + <tr> + <th scope="row">标签省略</th> + <td>开始标签是必须的。当该元素后面也跟着一个 <span style="font-family: courier new;"><optgroup> </span>元素,或该元素的父元素没有其他内容时,结束标签可省略。</td> + </tr> + <tr> + <th scope="row">允许的父元素</th> + <td>一个 {{HTMLElement("select")}} 元素.</td> + </tr> + <tr> + <th scope="row">Implicit ARIA role</th> + <td>{{ARIARole("group")}}</td> + </tr> + <tr> + <th scope="row">Permitted ARIA roles</th> + <td>No <code>role</code> permitted</td> + </tr> + <tr> + <th scope="row">DOM 接口</th> + <td>{{domxref("HTMLOptGroupElement")}}</td> + </tr> + </tbody> +</table> + +<p>{{Note("Optgroup elements may not be nested.")}}</p> + +<h2 id="属性">属性</h2> + +<p><span style="line-height: 21px;">这个元素包含 </span><a href="https://developer.mozilla.org/en-US/docs/HTML/Global_attributes" style="line-height: 21px;" title="HTML/Global attributes">global attributes</a><span style="line-height: 21px;">。</span></p> + +<dl> + <dt>{{htmlattrdef("disabled")}}</dt> + <dd>如果设置了这个布尔值,则不能选择这个选项组中的任何选项。通常浏览器会置灰这样的控件,它不接受任何浏览器事件,如鼠标点击或者焦点相关的事件。</dd> + <dt>{{htmlattrdef("label")}}</dt> + <dd>选项组的名字,浏览器用以在用户界面中标记选项。使用这个元素时必须加上这个属性。</dd> +</dl> + +<h2 id="示例">示例</h2> + +<pre class="brush: html"><select> + <optgroup label="Group 1"> + <option>Option 1.1</option> + </optgroup> + <optgroup label="Group 2"> + <option>Option 2.1</option> + <option>Option 2.2</option> + </optgroup> + <optgroup label="Group 3" disabled> + <option>Option 3.1</option> + <option>Option 3.2</option> + <option>Option 3.3</option> + </optgroup> +</select> +</pre> + +<h3 id="结果">结果</h3> + +<p><iframe class="live-sample-frame sample-code-frame" frameborder="0" id="frame_Example" src="https://mdn.mozillademos.org/en-US/docs/Web/HTML/Element/optgroup$samples/Example?revision=1617230"></iframe></p> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">规范</th> + <th scope="col">状态</th> + <th scope="col">注释</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('HTML WHATWG', 'the-button-element.html#the-optgroup-element', '<optgroup>')}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td></td> + </tr> + <tr> + <td>{{SpecName('HTML5 W3C', 'forms.html#the-optgroup-element', '<optgroup>')}}</td> + <td>{{Spec2('HTML5 W3C')}}</td> + <td></td> + </tr> + <tr> + <td>{{SpecName('HTML4.01', 'interact/forms.html#h-17.6', '<optgroup>')}}</td> + <td>{{Spec2('HTML4.01')}}</td> + <td></td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2> + +<p>{{Compat("html.elements.optgroup")}}</p> + +<div id="compat-desktop"></div> + +<div id="compat-mobile"></div> + +<h2 id="另请参阅">另请参阅</h2> + +<ul> + <li>其他表单相关的元素:{{HTMLElement("form")}}, {{HTMLElement("legend")}}, {{HTMLElement("label")}}, {{HTMLElement("button")}}, {{HTMLElement("select")}}, {{HTMLElement("datalist")}}, {{HTMLElement("option")}}, {{HTMLElement("fieldset")}}, {{HTMLElement("textarea")}}, {{HTMLElement("keygen")}}, {{HTMLElement("input")}}, {{HTMLElement("output")}}, {{HTMLElement("progress")}} 和 {{HTMLElement("meter")}}。</li> +</ul> |