diff --git a/cla_model.py b/cla_model.py
index acd65eb..48704ab 100644
--- a/cla_model.py
+++ b/cla_model.py
@@ -8,9 +8,9 @@ class ClassManagement(Base):
 
     __tablename__ = "wl_class"
 
-    id= Column(Integer,autoincrement=True,comment='id')
+    class_id= Column(Integer, primary_key=True,comment='id')
 
-    class_id= Column(Integer, primary_key=True ,comment='班级编号')
+    class_num= Column(Integer, comment='班级编号')
 
     class_name = Column(String(100), comment='班级名字')