简单教程
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代码编辑器:
<!DOCTYPE html> <meta charset="utf-8"> <script> function getIndex(){ var x=document.getElementById("mySelect"); alert(x.selectedIndex); } </script> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <form> 你喜欢的水果是: <select id="mySelect"> <option>苹果</option> <option>橙子</option> <option>菠萝</option> <option>香蕉</option> </select> <br><br> <input type="button" onclick="getIndex()" value="弹出选中项"> </form> <footer>简单教程,简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果: