我们如何在HTML中设置文本区域的可见行数？-html教程-PHP中文网

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示例 3

示例 2：使用 Javascript

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我们如何在HTML中设置文本区域的可见行数？

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Sep 16, 2023 pm 10:41 PM

我们如何在HTML中设置文本区域的可见行数？

本文将教您如何在 HTML 中设置文本区域中的可见行数。 HTML 元素对于多行编辑控制非常有用，并允许用户输入大量的自由格式文本。

语法

以下是设置文本区域中可见行数的语法 -

<textarea rows = "value">

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使用 HTML textarea rows 属性指定控件的显示行数或可见文本行数。此外，它还指定文本区域的可见高度。

以下是设置 HTML 文本区域中可见行数的示例。

示例 1

在下面的示例中，我们使用行和列中提到的行属性。</p> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><!DOCTYPE html> <html> <body> <textarea rows="7" cols="25"> Doorno:11/2 kavuri hills phase2 madhapur,hyderabad telangana </textarea> <input type = "submit" value = "submit" /> </body> </html> </pre><div class="contentsignin">登录后复制</div></div> <p>执行上述脚本时，它将生成由文本区域字段中的文本组成的输出，使通过使用文本区域行属性获得的行可见。</p> <h2 id="示例-使用-Javascript">示例 2：使用 Javascript</h2> <p>在下面的示例中，我们运行一个脚本以使线条在文本区域中可见。</p> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><!DOCTYPE html> <html> <body> <textarea id="mytutorial" rows="6" cols="50"> Mahendra Singh Dhoni is an Indian former professional cricketer who was captain of the Indian national cricket team in limited-overs formats from 2007 to 2017 and in Test cricket from 2008 to 2014. </textarea> <p>Click To Change Number Of Visible Rows</p> <button type="button" onclick="mytutorial1()">Click</button> <script> function mytutorial1() { document.getElementById("mytutorial").rows = "10"; } </script> </body> </html> </pre><div class="contentsignin">登录后复制</div></div> <p>运行上述脚本时，它将生成一个输出，其中包含一个填充文本的文本区域字段以及网页上的提示和单击按钮。</p> <p>当用户单击按钮时，会触发该事件并增加文本区域中可见行的数量。</p> <h2 id="示例">示例 3</h2> <p>在下面的示例中，我们使用 <textarea> row 属性来设置可见行数。</p> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'><!DOCTYPE html> <html> <head> <title>HTML rows attribute</title> </head> <body> <form action = "/cgi-bin/hello_get.cgi" method = "get">Enter subject<br /> <textarea rows = "5" cols = "50" name = "description"></textarea><br> <input type = "submit" value = "submit" /> </form> </body> </html> </pre><div class="contentsignin">登录后复制</div></div> <p>执行脚本时，它将生成一个输出，其中包含一个文本区域字段，供用户输入提到的文本，以及一个允许网页上可见线条的行属性。</p><p>以上是我们如何在HTML中设置文本区域的可见行数？的详细内容。更多信息请关注PHP中文网其他相关文章！</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">本站声明</div> <div>本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系admin@php.cn</div> </div> </div> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-5902227090019525" data-ad-slot="2507867629"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); 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