HTML Textarea

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📜 HTML Textarea

📅 最后修改于: 2020-11-01 07:44:37 🧑 作者: Mango

HTML标签用于定义多行文本输入控件。</ html></p> <p>它可以容纳不限数量的字符，并且文本以固定宽度的字体(通常是快递)显示。</p> <p>HTML文本区域的大小由<cols>和<rows>属性，也可以通过CSS height和width属性定义。</p> <h4>HTML Textarea示例</h4> <div class="hcb_wrap"> <pre class="prism line-numbers lang-python" data-lang="Java"><code><span <="" span="" style="font-size: 10pt"><textarea rows="9" cols="70"> JavaTpoint textarea tag example with rows and columns.

输出：

支持的浏览器

Element

Chrome

Firefox

Opera

Safari

</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
</tr>
</tbody>
</table>
<h4>新的HTML 5 Textarea属性</h4>
<table style="width: 100%; border-collapse: collapse; border-color: #b0b7d6; border-style: dotted; background-color: #f2eded;">
<tbody>
<tr>
<th>Attribute</th>
<th>Description</th>
</tr>
<tr>
<td>autofocus</td>
<td>It specifies that a text area should be automatically get focused when the page is loaded.</td>
</tr>
<tr>
<td>form</td>
<td>It specifies one or more forms the textarea belongs to.</td>
</tr>
<tr>
<td>maxlength</td>
<td>It specifies the maximum number of characters allowed in the text area.</td>
</tr>
<tr>
<td>placeholder</td>
<td>It specifies a short hint that describes the expected value of a textarea.</td>
</tr>
<tr>
<td>required</td>
<td>It specifies that textarea must be filled out.</td>
</tr>
<tr>
<td>wrap</td>
<td>It specifies that how the texts in the textarea are wrapped at the time of the submission of the form.</td>
</tr>
</tbody>
</table>
<h4>HTML Textarea表单属性</h4>
<p>form属性指定文本区域所属的一个或多个表单。</p>
<div class="hcb_wrap">
<pre class="prism line-numbers lang-python" data-lang="Java"><code><span <="" span="" style="font-size: 10pt"><form action="updates.jsp" id="usrform">
 Name: <input type="text" name="usrname">
 <input type="submit">
</form>
<br>
<textarea rows="9" cols="70" name="comment" form="usrform">
Enter text here...

The text area above is outside the form element, but should still be a part of the form.

Note: The form attribute is not supported in Internet Explorer.

输出：

上面的textarea元素在表单外部，但仍是表单的一部分。

注意：Internet Explorer不支持form属性。