【htmltextarea标签】在HTML中，`` 标签用于创建多行文本输入区域，常用于表单中让用户输入较长的文本内容。与 `<input>` 标签不同，`<textarea>` 可以支持多行输入，是网页交互中非常实用的元素之一。</p><p>一、总结</p><p>`<textarea>` 是HTML中用于创建多行文本框的标签，用户可以在其中输入多行文字。它支持多种属性，如 `rows` 和 `cols` 控制显示大小，`placeholder` 提示信息，`disabled` 禁用状态等。使用时需要注意默认值通过内部文本设置，而不是 `value` 属性。</p><p>二、表格说明</p><table><tbody><tr><td> 属性名 </td><td> 描述 </td><td> 示例</td></tr><tr><td> `rows` </td><td> 定义文本区域的可见行数 </td><td> `<textarea rows="5">...` `cols` 定义文本区域的可见列数 `...` `placeholder` 输入框为空时的提示信息 `` </td></tr><tr><td> `disabled` </td><td> 禁用文本区域，用户无法输入 </td><td> `<textarea disabled>...` `readonly` 文本区域只读，用户不能修改内容 `...` `name` 表单提交时使用的名称 `...` `value` 不推荐使用，应直接在标签内写入默认值 不建议使用：`` </td></tr><tr><td> `wrap` </td><td> 控制文本是否自动换行（`soft` 或 `hard`）</td><td> `<textarea wrap="soft">...`

三、使用示例

```html

</p><p>这里可以写默认内容</p><p>

```

在这个例子中，用户可以看到一个4行、50列的文本框，输入前会显示提示信息“请输入您的留言...”，并且默认内容为“这里可以写默认内容”。

四、注意事项

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