HTML 中的 标记用于为鼠标用户提供可用性改进，即，如果用户单击 元素内的文本，则会切换控件。 标签定义 、、、、、 或 元素的标签。</p> <p> <strong><label> 标签有两种使用方式：</strong></p> <ul> <li>首先，通过提供 <input> 和 id 属性来使用 <label> 标签。 <label> 标签需要一个值与输入id 相同<i>的for 属性。</i></li> <li>或者， <input> 标签直接在 <label> 标签内使用。在这种情况下，<i>不需要 for</i>和 id 属性，因为关联是隐式的。</li> </ul> <p><strong>句法：</strong> </p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><label> form content... </label></code></pre> </div> <p><strong>属性值：</strong></p> <ul> <li> <strong>for</strong> <strong>：</strong>指<span style="background-color:#fff;color:rgba(0,0,0,.87)">的是这个标签所针对的输入控件。</span>它的<span style="background-color:#fff;color:rgba(0,0,0,.87)">值必须与输入控件的“id”属性值相同。</span></li> <li> <strong>form</strong> <strong>：</strong>指标签所属的表单。</li> </ul> <p><strong>示例 1：</strong>这里我们将使用 level 标签之外的 input 标签。 </p> <p></p> <div class="_ap_apex_ad" id="d6f45c53-ff16-4cc5-8b91-eb6ee7037116" style="min-height:280px"></div> <p></p> <div> <h5 class="code">html</h5> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <body> <h1>GeeksforGeeks</h1> <strong>HTML label Tag</strong> <form> <!-- Starts label tags from here --> <label for="student"> Student </label> <input type="radio" name="Occupation" id="student" value="student"><br> <label for="business"> Business </label> <input type="radio" name="Occupation" id="business" value="business"><br> <label for="other"> Other </label> <!-- Ends label tags here --> <input type="radio" name="Occupation" id="other" value="other"> </form> </body> </html></code></pre> </div> <p></p> <hr/> <h5 class="code">html</h5> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <body> <h1>GeeksforGeeks</h1> <strong>HTML label Tag </strong> <form> <!-- label tag starts from here --> <label> Male <input type="radio" name="gender" id="male" value="male" /> </label><br/> <label> Female <input type="radio" name="gender" id="female" value="female" /> </label><br/> <label> Other <input type="radio" name="gender" id="other" value="other" /> </label> <!-- label tag ends from here --> </form> </body> </html></code></pre> </div> <p></p> <hr/> </div> <p><strong>输出：</strong> </p> <p><img class="img-fluid" sizes="100vw" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_<label>_Tag_0.jpg" srcset="https://media.geeksforgeeks.org/wp-content/uploads/20210215181659/Screenshot20210215181636.png," width="474"/></p> <p><strong>示例 2：</strong>这里我们将使用 level 标签内的 input 标签。</p> <div class="responsive-tabs"> <h2 class="tabtitle"> html </h2> <div class="tabcontent"> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <body> <h1>GeeksforGeeks</h1> <strong>HTML label Tag </strong> <form> <!-- label tag starts from here --> <label> Male <input type="radio" name="gender" id="male" value="male" /> </label><br/> <label> Female <input type="radio" name="gender" id="female" value="female" /> </label><br/> <label> Other <input type="radio" name="gender" id="other" value="other" /> </label> <!-- label tag ends from here --> </form> </body> </html> </code></pre> </div> </div> </div> <p><strong>输出：</strong> </p> <p><img class="img-fluid" sizes="100vw" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_<label>_Tag_1.jpg" srcset="https://media.geeksforgeeks.org/wp-content/uploads/20210215182532/Screenshot20210215182511.png," width="407"/></p> <p><strong>支持的浏览器：</strong></p> <ul> <li>谷歌浏览器</li> <li>IE浏览器</li> <li>火狐</li> <li>歌剧</li> <li>苹果浏览器</li> </ul> <div class="_ap_apex_ad" id="82d2079a-8120-480f-9fc7-5cda825d56e7" style="min-height:280px"></div> <p></p></div> </article> </div> </div> </div> </div> </div> <footer> <div class="bg-white text-center pb-1"> <p class="text-body-tertiary pt-3 lh-lg text-opacity-50" id="footer-text">Copyright © 2020 - 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