git/scr/food/pages/select2/select2.js

// pages/select1/select1.js
Page({
  data: {
    foodlist:[],
    tastes: ['香辣','香咸','酸甜','椒麻'],
    index:null,
    current:'',
    selectlist:[]
  },
  

tasteSelect:function(e){
  wx.showLoading({
    title: '正在为您精心挑选食物~',
  })
var taste=e.currentTarget.dataset.taste
console.log(taste)
var foodlist=this.data.foodlist
console.log(foodlist)
var foodlistselect=[]

//对食物进行筛选
for(var i=0;i<foodlist.length;i++){
  if(foodlist[i].taste==taste){
    foodlistselect.push(foodlist[i])
    continue;
  }
  else{
    continue;
  }
}
console.log(foodlistselect);
//确定食物
  var select=Math.floor(Math.random()*foodlistselect.length-1 )
  if(select<0){
    select="0"
  }

  console.log(select)
  var selection=foodlistselect[select]
  console.log(selection)
  var name=selection.food_name
  console.log(selection.food_name)
 var total=selection.price
 selection.num="1"
 selection.checks="false"
  var selection2=[]
  selection2.push(selection)
  wx.hideLoading({
    success: (res) => {
      wx.showModal({
        title:'提示',
        content:'今天吃'+name,
        confirmColor: "#f00",
        complete: (res) => {
          if (res.confirm) {
            wx.navigateTo({
              url:'/pages/paying/paying?info='+JSON.stringify(selection2)+'&totalprice='+total
            })
          }
     }
      })
    }
    })
   },
 
  


/**
   * 生命周期函数--监听页面加载
   */
  onLoad:function(options) {
  var foodlist=JSON.parse(options.info)
  console.log(foodlist)
  this.setData({
    foodlist:foodlist
  })
  
  },

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

  },

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

  },

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

  },

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

  },

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

  },

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

  },

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

  }
})