51.获取下拉列表框的选择 ondbclick myselset.options.selectIndex

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html xmlns="http://www.w3.org/1999/xhtml" >
 5 <head>
 6 <title>标题页</title>
 7 <script LANGUAGE="JavaScript">
 8 function mySelect()
 9 {
10     var mysel=document.getElementById("select1");             //获取文档中的下拉框
11     var txt=mysel.options[mysel.options.selectedIndex].text;  //获取下拉框显示的文本
12     var valu=mysel.options[mysel.options.selectedIndex].value;//获取下拉框的值
13     alert("您选择的是"+ valu);
14 }
15 </script>
16 </head>
17 <body>
18 <select size="10" ondblclick="mySelect()" id="select1">
19 <option value="大中城市">大城市</option>
20 <option value="国际化大都市">国际城市</option>
21 </select>
22 </body>
23 </html>

posted on 2017-03-03 02:16 Sharpest 阅读(165) 评论(0) 收藏举报