from sqlalchemy import  Column, Integer,ForeignKey
from sqlalchemy.orm import relationship
from database import Base


# 成绩表表模型
class Score(Base):
    __tablename__ = 'score'
    # 联合主键stu_id,exam_order
    # 外键关联student
    stu_id=Column(Integer,ForeignKey('student.stu_id'),primary_key=True)
    # 声明关联student
    student=relationship('Student',back_populates='score')
    exam_id=Column(Integer,primary_key=True)
    score=Column(Integer,nullable=False)