>>跟着b站up主“咸虾米_”学习微信小程序开发中，把学习记录存到这方便后续查找。

一、tabBar

https://developers.weixin.qq.com/miniprogram/dev/reference/configuration/app.html#tabBar

二、icon下载

https://www.iconfont.cn/collections/index?spm=a313x.home_index.i3.4.63223a81XIgGOZ&type=1&sortType=like

按点赞数排序，找到Ant Design 官方图标库，分别下载空心和实心的图标，保存到static\image文件夹里即可引用。 

三、代码

app.json中，"window":{},的后面添加如下代码

  "tabBar": {
    "color":"#8a8a8a",
    "selectedColor": "#73cbf9",
    "list":[{
      "text": "首页",
      "pagePath": "pages/index/index",
      "iconPath": "static/image/home.png",
      "selectedIconPath": "static/image/home-fill.png"
    },{
      "text":"我的",
      "pagePath": "pages/formKT/formKT",
      "iconPath": "static/image/smile.png",
      "selectedIconPath": "static/image/smile-fill.png"
    },{
      "text":"视频",
      "pagePath": "pages/demo/demo",
      "iconPath": "static/image/video.png",
      "selectedIconPath": "static/image/video-fill.png"
    }]
  },