【textarea只读属性】在HTML中，`` 元素用于创建多行文本输入框。在某些情况下，用户可能需要限制对 `<textarea>` 内容的编辑，但又希望保留其显示功能。这时就可以使用 `readonly` 属性。</p><p>一、什么是 `readonly` 属性？</p><p>`readonly` 是一个布尔属性，用于指定 `<textarea>` 是否为只读状态。当设置该属性时，用户无法修改文本内容，但可以通过鼠标选择和复制内容。与 `disabled` 属性不同，`readonly` 的 `<textarea>` 仍然可以接收焦点，并且在表单提交时会包含其值。</p><p>二、如何使用 `readonly` 属性？</p><p>使用方式非常简单，只需要在 `<textarea>` 标签中添加 `readonly` 属性即可：</p><p>```html</p><p><textarea readonly>这是只读内容

```

三、`readonly` 和 `disabled` 的区别

四、应用场景

- 展示信息：用户不需要修改内容，只需查看。

- 防止误操作：避免用户不小心更改重要数据。

- 表单预览：在提交前让用户确认内容，但不允许修改。

五、总结

`` 的 `readonly` 属性是一个实用的功能，可以在不牺牲用户体验的前提下限制内容的编辑。相比 `disabled`，它提供了更大的灵活性，适合多种实际应用场景。合理使用这一属性，有助于提升网页交互的友好性和安全性。</p><style>table,tr{width: 100%;text-align: center;color: #333;font-size: 16px;line-height: 1.8em;margin-bottom: 32px;border: 1px solid #333;empty-cells:show;}table tr th {border: 1px solid #333;text-align: center;font-weight: 600;background: #eee;}table tr td {border: 1px solid #333;text-align: center}</style> </div> </div> </div> <!--内容关联投票--> <div class="clear"></div> <div id="SGOContentPage" class="SiteGeneralContentPage" style="margin-top:15px;"></div> <div class="article_footer clearfix"> <div class="fr tag"> 标签： <a href="http://www.whdslt.com/tag/textareazhidushuxing/" target="_blank">textarea只读属性</a> </div> </div> <div class="content_banquan"> <p><span class="strong">免责声明：本答案或内容为用户上传，不代表本网观点。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。 如遇侵权请及时联系本站删除。</span></p> </div> <script> if (isMobile()){ document.write('<div style="text-align:center;margin-top:10px;margin-left:-15px;"><script>wap_show_tag_under9();<\/script><\/div>'); 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