xusfood_client/unpackage/dist/dev/mp-weixin/components/tabbar.json

{
  "component": true,
  "usingComponents": {
    "u-tabbar": "/uni_modules/uview-ui/components/u-tabbar/u-tabbar",
    "u-tabbar-item": "/uni_modules/uview-ui/components/u-tabbar-item/u-tabbar-item"
  }
}