<picker mode="multiSelector" bindchange="bindMultiPickerChange2" bindcolumnchange="bindMultiPickerColumnChange2" value="{{multiIndex}}" range="{{objectMultiArray}}" range-key="{{'name'}}">
 <view class="picker">
 當前選擇：{{objectMultiArray[0][multiIndex2[0]].name}}，{{objectMultiArray[1][multiIndex2[1]].name}}
 </view>
</picker>

Page({

 /**
 * 頁面的初始數(shù)據(jù)
 */
 data: {
 objectMultiArray: [
 [
 {
  id: 0,
  name: '無脊柱動物'
 },
 {
  id: 1,
  name: '脊柱動物'
 }
 ], [
 {
  id: 0,
  name: '扁性動物'
 },
 {
  id: 1,
  name: '線形動物'
 },
 {
  id: 2,
  name: '環(huán)節(jié)動物'
 },
 {
  id: 3,
  name: '軟體動物'
 },
 {
  id: 3,
  name: '節(jié)肢動物'
 }
 ]
 ],
 multiIndex2: [0, 0],
 },


 bindMultiPickerChange2: function (e) {
 console.log('picker發(fā)送選擇改變，攜帶值為', e.detail.value)
 this.setData({
 multiIndex2: e.detail.value
 })
 },
 bindMultiPickerColumnChange2: function (e) {
 console.log('修改的列為', e.detail.column, '，值為', e.detail.value);
 var data = {
 objectMultiArray: this.data.objectMultiArray,
 multiIndex2: this.data.multiIndex2
 };
 data.multiIndex2[e.detail.column] = e.detail.value;
 switch (e.detail.column) {
 case 0:
 switch (data.multiIndex2[0]) {
  case 0:
  data.objectMultiArray[1] = [
  { id: 0, name: '扁性動物' },
  { id: 1, name: '線形動物' },
  { id: 2, name: '環(huán)節(jié)動物' },
  { id: 3, name: '軟體動物' },
  { id: 3, name: '節(jié)肢動物' }
  ];
  // data.multiArray[2] = ['豬肉絳蟲', '吸血蟲'];
  break;
  case 1:
  data.objectMultiArray[1] = [
  { id: 0, name: '魚' },
  { id: 1, name: '線形兩棲動物' },
  { id: 2, name: '爬行動物' }
  ];
  break;
 }
 data.multiIndex2[1] = 0;
 // data.multiIndex[2] = 0;
 break;
 }
 this.setData(data);
 }


})