index.wxml

<view class="container">
  <button bindtap='getScancode'>扫一扫</button>
</view>

index.js

const app = getApp()
Page({
  data: {
    result: ''
  },

  onl oad: function() {

  },
 
  getScancode: function() {
    wx.scanCode({
    onlyFromCamera: true,//只允许从相机扫码
      success: (res) => {
        wx.navigateTo({
          url: '../navigator/navigator?content=' + res.result
        })
        var result = res.result;
 
        _this.setData({
          result: result,
 
        })
      }
    })
 
  }
 
})

要跳转的页面
navigator.wxml

<view> {{content}} </view>

navigator.js

Page({

  data: {
 
  },

  onl oad: function (options) {
    this.setData({
      content: options.content
     
    })

  },