参考链接:https://www.cnblogs.com/yugege/p/4305051.html
参考链接:https://www.cnblogs.com/bettermu/p/8434140.html
<select id="s1"> <option value="">---请选择---</option> <option value="1">教学类</option> <option value="2"> 技术类</option> </select>
<button id="btn">获取</button>
赋值:
var objSelect= document.getElementById("s1"); var d = objSelect.options[objSelect.selectedIndex];//取值
d.text ="123";//赋值 console.log(d)
取值:
$("#btn").click(function(){ var objSelect= document.getElementById("s1"); var d = objSelect.options[objSelect.selectedIndex]; console.log(d) })