微信小程序多列选择器

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

Page({ /**
* 页面的初始数据
*/
data: {
objectMultiArray: [
[
{
id: 0,
name: '无脊柱动物'
},
{
id: 1,
name: '脊柱动物'
}
], [
{
id: 0,
name: '扁性动物'
},
{
id: 1,
name: '线形动物'
},
{
id: 2,
name: '环节动物'
},
{
id: 3,
name: '软体动物'
},
{
id: 3,
name: '节肢动物'
}
]
],
multiIndex2: [0, 0],
}, bindMultiPickerChange2: function (e) {
console.log('picker发送选择改变，携带值为', e.detail.value)
this.setData({
multiIndex2: e.detail.value
})
},
bindMultiPickerColumnChange2: function (e) {
console.log('修改的列为', e.detail.column, '，值为', 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: '扁性动物' },
{ id: 1, name: '线形动物' },
{ id: 2, name: '环节动物' },
{ id: 3, name: '软体动物' },
{ id: 3, name: '节肢动物' }
];
// data.multiArray[2] = ['猪肉绦虫', '吸血虫'];
break;
case 1:
data.objectMultiArray[1] = [
{ id: 0, name: '鱼' },
{ id: 1, name: '线形两栖动物' },
{ id: 2, name: '爬行动物' }
];
break;
}
data.multiIndex2[1] = 0;
// data.multiIndex[2] = 0;
break;
}
this.setData(data);
}})