StudyClassVo

{
    "classId": 0,
    "deptId": 0,
    "deptName": "string",
    "gradeId": 0,
    "gradeName": "string",
    "classNum": "string",
    "classCode": "string",
    "className": "string",
    "classDirectorId": 0,
    "classDirectorName": "string",
    "phone": "string",
    "promotionTime": "2019-08-24T14:15:22.123Z"
}