iot-test-app/unpackage/dist/dev/mp-weixin/uni_modules/uview-ui/components/u-button/u-button.json

{
  "component": true,
  "usingComponents": {
    "u-loading-icon": "/uni_modules/uview-ui/components/u-loading-icon/u-loading-icon",
    "u-icon": "/uni_modules/uview-ui/components/u-icon/u-icon"
  }
}