kangarooDataCenterV3/jolt-demo/shift/spec13.json

[
  {
    "operation": "shift",
    "spec": {
      "photo-1-id": "Photos[1].Id",//输出到Photos[1].Id、1是索引
      "photo-1-url": "Photos[1].Url"//输出到Photos[1].Url
    }
  }
]