我們如何在HTML中設定文字區域的可見行數？-html教學-PHP中文網

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範例 3

範例 2：使用 Javascript

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我們如何在HTML中設定文字區域的可見行數？

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Sep 16, 2023 pm 10:41 PM

我們如何在HTML中設定文字區域的可見行數？

本文將教您如何在 HTML 中設定文字區域中的可見行數。 HTML 元素對於多行編輯控制非常有用，並允許使用者輸入大量的自由格式文字。

文法

以下是設定文字區域中可見行數的語法 -

<textarea rows = "value">

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使用 HTML textarea rows 屬性指定控制項的顯示行數或可見文字行數。此外，它還指定文字區域的可見高度。

以下是設定 HTML 文字區域中可見行數的範例。

範例 1

在下面的範例中，我們使用行和列中提到的行屬性。 </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">登入後複製</div></div> <p>執行上述腳本時，它將產生由文字區域欄位中的文字組成的輸出，使透過使用文字區域行屬性獲得的行可見。 </p> <h2 id="範例-使用-Javascript">範例 2：使用 Javascript</h2> <p>在下面的範例中，我們執行一個腳本以使線條在文字區域中可見。 </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">登入後複製</div></div> <p>在執行上述腳本時，它將產生一個輸出，其中包含一個填充文字的文字區域欄位以及網頁上的提示和點擊按鈕。 </p> <p>當使用者點擊按鈕時，會觸發該事件並增加文字區域中可見行的數量。 </p> <h2 id="範例">範例 3</h2> <p>在下面的範例中，我們使用 <textarea> row 屬性來設定可見行數。 </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">登入後複製</div></div> <p>執行腳本時，它將產生一個輸出，其中包含一個文字區域字段，供使用者輸入提到的文本，以及一個允許網頁上可見線條的行屬性。 </p><p>以上是我們如何在HTML中設定文字區域的可見行數？的詳細內容。更多資訊請關注PHP中文網其他相關文章！</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">本網站聲明</div> <div>本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡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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