### 11.表单中城市区联动 - 写如下代码即可 ``` <div class="layui-form-item"> <label class="layui-form-label">公司地址</label> <div class="layui-input-inline" style="width:130px"> <select name="rarea1" lay-filter="province"> <option></option> </select> </div> <div class="layui-input-inline" style="width:130px"> <select name="rarea2" lay-filter="city"> <option></option> </select> </div> <div class="layui-input-inline" style="width:130px"> <select name="rarea3" lay-filter="area"> <option></option> </select> </div> </div> ```