laundry/pages/take/index.js

// pages/tabber/news/index.js
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) {
        class Select {
            in = 1
            getSelet(){
                console.log(2);
                return 10
            }
        }

        var b = new Select();
        console.log(b.getSelet());
    },

    /**
     * 生命周期函数--监听页面初次渲染完成
     */
    onReady: function () {
        const query = wx.createSelectorQuery()
        query.select('#nav').boundingClientRect((res) => {
            console.log(res);
            this.setData({
                selectInfo: res
            })
        })
        query.exec()
    },
    saoma:function(){
        wx.scanCode({
          onlyFromCamera: true,
          success (res) {
           wx.navigateTo({
             url: '/pages/take/lattice',
           })
          }
        
        })
    }

})