wxml代码：
<view class="section" style="background:#dfe0e2;margin:20rpx;padding:20rpx"><picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}"><view class="picker">分类：{{array[index]}}</view></picker></view><view class="section" style="background:#dfe0e2;margin:20rpx;padding:20rpx"><picker mode="date" value="{{date1}}" bindchange="bindDateStartChange"><view class="picker">开始日期: {{date1}}</view></picker></view><view class="section" style="background:#dfe0e2;margin:20rpx;padding:20rpx"><picker mode="date" value="{{date2}}" bindchange="bindDateEndChange"><view class="picker">结束日期: {{date2}}</view></picker></view><button type="primary" size="{{primarySize}}" loading="{{loading}}" plain="{{plain}}"disabled="{{disabled}}" bindtap="query"> 查询 </button>
js代码：
Page({data: {date1: '',date2: '',array: ['选择分类的参数一', '选择分类的参数二'],index: 0,},onLoad: function () {var that = this;var dateNow = new Date();var year = dateNow.getFullYear();var month = dateNow.getMonth() + 1;var day = dateNow.getDate()var date = year + "-" + month + "-" + daythat.setData({date1: date,date2: date});},// 点击开始日期组件确定事件bindDateStartChange: function (e) {var that = this;that.setData({date1: e.detail.value})},// 点击结束日期组件确定事件bindDateEndChange: function (e) {var that = this;that.setData({date2: e.detail.value})},// 点击分类组件确定事件bindPickerChange: function (e) {var that = this;that.setData({index: e.detail.value})},//点击查询时组件的事件query: function (e) {var that = this;var array = that.data.array;var index = that.data.index;var startDate = that.data.date1;var endDate = that.data.date2;console.log("分类："+array[index])console.log("开始时间：" + startDate)console.log("结束时间" + endDate)},})
