修改外键

stu_jiuye/model.py

@@ -1,5 +1,5 @@
 from sqlalchemy import ForeignKey
-from student_manage_system import students,classes
+
 from stu_jiuye.database import DATETIME,Base,Column,Integer,String,DATE
 from datetime import datetime
 
@@ -10,12 +10,12 @@ class Employments(Base):                                            #学生就
     id = Column(Integer                                         #主键，自增主键
                 , primary_key=True
                 , autoincrement=True
-                # , ForeignKey='student.id'
+                # , ForeignKey('student.id')
                 , comment='自增主键'
                 )
 
-    num  = Column(Integer
-                    , ForeignKey('students.num')
+    stuid  = Column(Integer
+                    , ForeignKey('students.id')
                     )                                #学生姓名，冗余字段
     class_num  = Column(Integer
                          , ForeignKey('classes.id')