laundry/pages/take/index.js

// pages/tabber/news/index.js
const app=getApp();
Page({

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

    /**
     * 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 () {
    },
    saoma:function(){
        wx.scanCode({
          onlyFromCamera: true,
          success (res) {
            console.log( res.result.substr(1));
            var regstr = new RegExp('(^|&|/?)orde_num=([^&|/?]*)', 'i');  
            var exp = res.result.match(regstr);  
            console.log(exp);
           wx.navigateTo({
             url: '/pages/take/lattice?deviceId='+exp[2],
           })
          }
        
        })
    },
   
})