微信小程序select下拉框实现

<view class=‘list-msg‘>
<view class=‘list-msg1‘>
<text>商品金额</text>
<text>￥99.00</text>
</view>
<!--下拉框 -->
<view class=‘list-msg2‘ bindtap=‘bindShowMsg‘>
<text>{{tihuoWay}}</text>
<image style=‘height:20rpx;width:20rpx;‘ src=‘/images/down.png‘></image>
</view>
<view class=‘list-msg1‘>
<text>运费</text>
<text></text>免邮</view>
<view class=‘list-msg1‘>
<text>实际付款</text>
<text style=‘color:red‘>￥99.00</text>
</view>
<!-- 下拉需要显示的列表 -->
<view class="select_box" wx:if="{{select}}">
<view class="select_one" bindtap="mySelect" data-name="重庆分店">重庆分店</view>
<view class="select_one" bindtap="mySelect" data-name="东莞南城分店">东莞南城分店</view>
<view class="select_one" bindtap="mySelect" data-name="东莞总店">东莞总店</view>
</view>
</view>
下面是js代码

Page({

/**
* 页面的初始数据
*/
data: {
select: false,
tihuoWay: ‘门店自提‘
},

/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {

},
bindShowMsg() {
this.setData({
select:!this.data.select
})
},
mySelect(e) {
var name = e.currentTarget.dataset.name
this.setData({
tihuoWay: name,
select: false
})
},


/**
* 用户点击右上角分享
*/
onShareAppMessage: function () {

}
})

.list-msg {
padding: 0 20rpx;
background-color: #fff;
position: relative;
}

.list-msg1 {
height: 60rpx;
display: flex;
align-items: center;
justify-content: space-between;
}

.list-msg .list-msg2 {
height: 60rpx;
display: flex;
align-items: center;
justify-content: space-between;
border: 1px solid #ccc;
padding: 0 10rpx;
}

.select_box {
background-color: #eee;
padding: 0 10rpx;
width: 93%;
position: absolute;
top: 130rpx;
z-index: 1;
overflow: hidden;
animation: myfirst 0.5s;
}

@keyframes myfirst {
from {
height: 0rpx;
}

to {
height: 210rpx;
}
}

.select_one {
height: 60rpx;
line-height: 60rpx;
border-bottom: 1px solid #ccc;
}