//index.js //獲取應用實例 var app = getApp() Page({  data: {   date: '2016-11-08',   time: '12:00',   array: ['中國', '巴西', '日本', '美國'],   index: 0,  },   onLoad: function () {   },  // 點擊時間組件確定事件  bindTimeChange: function (e) {   this.setData({    time: e.detail.value   })  },  // 點擊日期組件確定事件  bindDateChange: function (e) {   this.setData({    date: e.detail.value   })  },  // 點擊國家組件確定事件  bindPickerChange: function (e) {   this.setData({    index: e.detail.value   })  } }) 2.index.wxml[html] view plain copy<!--index.wxml--> <view class="section" style="background:#787878;margin:20rpx;padding:20rpx">  <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}">   <view class="picker">    國家：{{array[index]}}   </view>  </picker> </view>  <view class="section" style="background:#787878;margin:20rpx;padding:20rpx">  <picker mode="time" value="{{time}}" start="09:01" end="21:01" bindchange="bindTimeChange">   <view class="picker">    時間 : {{time}}   </view>  </picker> </view> <view class="section" style="background:#787878;margin:20rpx;padding:20rpx">  <picker mode="date" value="{{date}}" start="2015-09-01" end="2017-09-01" bindchange="bindDateChange">   <view class="picker">    日期: {{date}}   </view>  </picker> </view>