picker组件“pages/chezhu/main”没有要处理的方法“bindTimeChange”??

用的Vue写的

<view class="left1">出发时间:

<view class="liubai">

<picker mode="time" value="value" start="09:01" end="21:01" bindchange="bindTimeChange">

<view class="picker">

<div>{{time}}</div>

</view>

</picker>

</view>

</view>

<view class="left1">出发日期:

<view class="liubai">

<picker mode="date" value="value" start="2020-05-18" end="2022-05-17" bindchange="bindDateChange">

<view class="picker">

<div class="dateText">{{date}}</div>

</view>

</picker>

</view>

</view>

------------------------------------

export default {

data() {

return {

time: "12:00",

date: "2020-05-20",

}

},

onLoad: function () {

},

// 点击时间组件确定事件

bindTimeChange: function (e) {

console.log('picker发送选择改变，携带值为', e.detail.value)

this.setData({

time: e.detail.value

})

},

// 点击日期组件确定事件

bindDateChange: function (e) {

console.log('picker发送选择改变，携带值为', e.detail.value)

this.setData({

date: e.detail.value

})

}

}

------------------------------------------------------------------------

//main.js

import Vue from 'vue'

import App from './chezhu'

const app = new Vue(App)

app.$mount()

--------------------------------

用Vue这里不value="{{time}}"不给这样写,只能value="value".

底部选择器出来了,但是选择的结果不会更新到页面,说明是:"没有方法“bindTimeChange”来处理事件“Change”.

谁能教下我这个新手,谢谢