微信小程序select下拉框实现效果

 
  商品金额
  ￥99.00
 

 
  {{tihuoWay}}
  
 
 
  运费
  免邮
 
  实际付款
  ￥99.00
 

 
  重庆分店
  东莞南城分店
  东莞总店
 

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;
}