官方文档地址：https://developers.weixin.qq.com/miniprogram/dev/reference/configuration/app.html#tabBar
首先我们需要搭建一个 Tabbar，在搭建之前我们将需要跳转的页面创建一下待会需要使用到。
创建 me 我的页面，在 pages 当中鼠标右键新建页面即可，在新建一个 order 订单页面，更改 app.json 配置添加 tabBar 配置项：
{ "tabBar": { "color": "#000000", "backgroundColor": "#000000", "list": [ { "pagePath": "pages/index/index", "text": "首页", "iconPath": "/assets/images/cart.png", "selectedIconPath": "/assets/images/cart-active.png" }, { "pagePath": "pages/order/order", "text": "订单", "iconPath": "/assets/images/cart.png", "selectedIconPath": "/assets/images/cart-active.png" }, { "pagePath": "pages/me/me", "text": "我的", "iconPath": "/assets/images/user.png", "selectedIconPath": "/assets/images/user-active.png" } ] } }
图片，需要的私信我。
