fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <form> 猫:<input type="radio" name="pet" id="cats"><br> 狗:<input type="radio" name="pet" id="dogs"> </form> <p>单击下面的按钮禁用第一个单选框。</p> <button onclick="disableElement()">禁用单选框按钮</button> <script> function disableElement(){ document.getElementById("cats").disabled=true; } </script> </body> </html>
运行结果