app.json

 "tabBar": {
    "backgroundColor": "#ffffff",
    "color": "#979795",
    "selectedColor": "#1c1c1b",
    "list": [{
      "pagePath": "pages/home/home",
      "text": "首页",
      "iconPath": "/zhy/resource/images/mine/guest.png",
      "selectedIconPath":"/zhy/resource/images/mine/guest2.png"

    }, {
      "pagePath": "pages/test/test",
      "text": "我的",
      "iconPath": "/zhy/resource/images/mine/holder.png",
      "selectedIconPath":"/zhy/resource/images/mine/holder2.png"
    }]
  },

pages/test/test

const app = getApp();
Page({
data:{

},
onLoad(options) {
   wx.reLaunch({
     url: '/pages/mine/mine',
   })
}

})