因为本身layui是有一套自身的监听方式，form.on 当然你是先将select放入<div class="layui-form">中，不然都显示不出select
里面也有监听普通下拉选框选中值发生改变的方式，直接复制即可
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>监听下拉选框</title>
<link rel="stylesheet" href="//layui.hcwl520.com.cn/layui/css/layui.css?v=201809030202" rel="external nofollow" >
</head>
<body>
<div class="layui-form">
<div class="layui-inline">
<div class="layui-inline">
<label class="layui-form-label">layui监听下拉选框</label>
<div class="layui-input-inline layui-input-inline-add">
<select id="Select" lay-filter="Select" name="aaa" lay-search="">
<option value="0">1</option>
<option value="1">2</option>
<option value="2">3</option>
</select>
</div>
</div>
</div>
</div>
<h3 style="margin-top: 50px;">普通监听下拉选框</h3>
<select name="" id="common" style="height: 35px;width: 200px;margin-left:110px;">
<option value="0">1</option>
<option value="1">2</option>
<option value="2">3</option>
</select>
<script src="http://code.jquery.com/jquery-3.3.1.js" integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
<script src="//layui.hcwl520.com.cn/layui/layui.js?v=201809030202"></script>
<script>
layui.use(['form','layer'],function () {
var form=layui.form;
var layer=layui.layer;
form.on('select(Select)',function(data){
layer.msg('监听到下拉选框选中值发生改变')
});
})
$("#common").on('change',function () {
alert('监听到下拉选框选中值发生改变')
})
</script>
</body>
</html>
以上这篇layui监听下拉选框选中值变化的方法(包含监听普通下拉选框)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。
