一、wxml页面代码如下：

二、wxss样式文件代码如下：

page{
    height: 100%;
}
.container{
    background-color: #f5f5f9;
    justify-content: initial;
}
.form-box{
    width:100%;
    background-color: #fff;
    margin-top: 20rpx;
}
.row-wrap{
    width: 720rpx;
    height: 88rpx;
    line-height: 88rpx;
    margin-left: 30rpx;
    border-bottom: 1rpx solid #eee;
    display: flex;
    font-size: 28rpx;
    /*justify-content: space-between;*/
}
.row-wrap .label{
    width: 160rpx;
    color: #000
}
.row-wrap .label-right{
    flex: 1;
    height: 88rpx;
    line-height: 88rpx;
}
.row-wrap .label-right input{
    height: 100%;
    font-size: 28rpx;
    padding-right: 30rpx;
}
.row-wrap .right-box{
    margin-right: 30rpx; 
}
.arrow-right{
    width: 15rpx;
    height: 24rpx;
}
.save-btn,
.cancel-btn{
    width: 690rpx;
    height: 80rpx;
    line-height: 80rpx;
    text-align: center;
    margin-top:30rpx; 
    border-radius: 6rpx;
    box-sizing: border-box;
}
.save-btn{
    background-color: #e64340;
    color:#fff;
}
button[type="default"]{
    background-color: #ffffff;
    color:#000;
}
.addr-details{
    height: auto;
    padding: 30rpx 0;
    margin-left:30rpx;
    border-bottom: 1rpx solid #eee;
    display: flex;
    font-size: 28rpx;
}
.addr-details .label{
    margin:auto 0 auto 0;
    width: 160rpx;
    color: #000
}
.addr-details textarea{
    box-sizing: border-box;
    width: 480rpx;
    overflow: scroll;
}
picker {
    min-width: 20rpx;
    height: 100%;
    margin-right: 20rpx;
}
.hui{
    color: #777;
}

三、js页面代码如下：

var wxpay = require('../../utils/pay.js')
var app = getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
  
  },

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

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
  
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
  
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {
  
  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {
  
  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
  
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
  
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {
  
  },
  bindCancel: function () {
    wx.navigateBack({})
  },
  bindSave: function (e) {
    var that = this;
    var amount = e.detail.value.amount;

    if (amount == "" || amount*1 < 0) {
      wx.showModal({
        title: '错误',
        content: '请填写正确的充值金额',
        showCancel: false
      })
      return
    }
    wxpay.wxpay(app, amount, 0, "/pages/my/index");    
  }
})