<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> <title>基于 Layui form 组件的省市区级联的实现</title> <link rel="stylesheet" href="plugins/layui/css/layui.css" /> </head> <body> <div style="margin: 50px auto; "> <form class="layui-form"> <div class="layui-form-item"> <label class="layui-form-label">选择地区</label> <div class="layui-input-inline"> <select name="province" lay-filter="province"> <option value="">请选择省</option> </select> </div> <div class="layui-input-inline" style="display: none;"> <select name="city" lay-filter="city"> <option value="">请选择市</option> </select> </div> <div class="layui-input-inline" style="display: none;"> <select name="area" lay-filter="area"> <option value="">请选择县/区</option> </select> </div> </div> </form> </div> <script type="text/javascript" src="plugins/layui/layui.js"></script> <script type="text/javascript" src="js/area.js"></script> <script> //初始数据 var areaData = Area; var $form; var form; var $; layui.use(['jquery', 'form'], function() { $ = layui.jquery; form = layui.form(); $form = $('form'); loadProvince(); }); //加载省数据 function loadProvince() { var proHtml = ''; for (var i = 0; i < areaData.length; i++) { proHtml += '<option value="' + areaData[i].provinceCode + '_' + areaData[i].mallCityList.length + '_' + i + '">' + areaData[i].provinceName + '</option>'; } //初始化省数据 $form.find('select[name=province]').append(proHtml); form.render(); form.on('select(province)', function(data) { $form.find('select[name=area]').html('<option value="">请选择县/区</option>').parent().hide(); var value = data.value; var d = value.split('_'); var code = d[0]; var count = d[1]; var index = d[2]; if (count > 0) { loadCity(areaData[index].mallCityList); } else { $form.find('select[name=city]').parent().hide(); } }); } //加载市数据 function loadCity(citys) { var cityHtml = ''; for (var i = 0; i < citys.length; i++) { cityHtml += '<option value="' + citys[i].cityCode + '_' + citys[i].mallAreaList.length + '_' + i + '">' + citys[i].cityName + '</option>'; } $form.find('select[name=city]').html(cityHtml).parent().show(); form.render(); form.on('select(city)', function(data) { var value = data.value; var d = value.split('_'); var code = d[0]; var count = d[1]; var index = d[2]; if (count > 0) { loadArea(citys[index].mallAreaList); } else { $form.find('select[name=area]').parent().hide(); } }); } //加载县/区数据 function loadArea(areas) { var areaHtml = ''; for (var i = 0; i < areas.length; i++) { areaHtml += '<option value="' + areas[i].areaCode + '">' + areas[i].areaName + '</option>'; } $form.find('select[name=area]').html(areaHtml).parent().show(); form.render(); form.on('select(area)', function(data) { //console.log(data); }); } </script> </body> </html>
参考demo：http://www.zhengjinfan.cn/picker.html
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