取值问题，求大神帮忙！！！！！

Question

JS获取服务器控件下拉列表框 的文本值，求大神解决，急用!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

 var obj = document.getElementById("select_id"); //selectid下拉框的id
var index = obj.selectedIndex; // 选中索引
var text = obj.options[index].text; // 选中文本
var value = obj.options[index].value; // 选中值