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代码编辑器:
<!DOCTYPE html> <meta charset="utf-8"> <script> function disable(){ document.getElementById("mySelect").disabled=true; } function enable(){ document.getElementById("mySelect").disabled=false; } </script> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <form> <select id="mySelect"> <option>苹果</option> <option>梨子</option> <option>香蕉</option> <option>橙子</option> </select> <br><br> <input type="button" onclick="disable()" value="禁用列表"> <input type="button" onclick="enable()" value="启用列表"> </form> <footer>简单教程,简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果: