计算加班时长

curl --location 'http://www.yundongblock.com/gateway/api/invokeRpc' \
--header 'Content-Type: application/json' \
--data '{
    "url": "string",
    "param": {
        "appId": "string",
        "request": {
            "items": [
                {
                    "date": "string",
                    "unitStr": "string",
                    "allowOvertime": true,
                    "dayUnit": true,
                    "rounding": "string",
                    "overtimeType": "string",
                    "timeEnum": null,
                    "delayCalculate": true,
                    "overtimeTypeStr": "string",
                    "unit": "string",
                    "crossDay": true,
                    "identityId": "string",
                    "conflictDescription": null,
                    "beginTimeDayType": "string",
                    "dayPeriod": null,
                    "endTimeDayType": "string",
                    "endTime": null,
                    "beginTime": 0,
                    "overtimeDuration": 0,
                    "conflict": true,
                    "duration": 0
                }
            ]
        }
    }
}'