BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> </head> <body> <h3>访问 LABEL 元素</h3> <label for="male" id="myLabel">Male</label> <input id="male" name="sex" type="radio" value="male"><br> <p>点击按钮获取 label 绑定的元素的 id。</p> <p id="demo"></p> <button onclick="myFunction()">尝试一下</button> <script> function myFunction(){ var x = document.getElementById("myLabel").htmlFor; document.getElementById("demo").innerHTML = x; }; </script> </body> </html>
运行结果