appointment-mp/pages/home/contact/contact.json

{
  "component": true,
  "usingComponents": {
        "van-loading": "../../../dist/loading/index",
        "van-cell-group": "../../dist/cell-group/index",
        "van-cell": "../../../dist/cell/index",
        "van-button": "../../../dist/button/index",
        "van-field": "../../dist/field/index"
  }
}