diff --git a/PythonProject/model/all_model.py b/PythonProject/model/all_model.py
index b9508c0..74f785d 100644
--- a/PythonProject/model/all_model.py
+++ b/PythonProject/model/all_model.py
@@ -75,13 +75,13 @@ class Teacher_Model(Base):
 
     teac_id=Column(Integer,primary_key=True,autoincrement=True,comment='老师编号')
 
-    teac_name=Column(String(20),comment='老师姓名')
+    teac_name=Column(String(100),comment='老师姓名')
 
-    teac_gender=Column(String(5),comment='老师性别')
+    teac_gender=Column(String(100),comment='老师性别')
 
     teac_age=Column(Integer,comment='老师年龄')
 
-    teac_position =Column(String(20),comment='老师职位')
+    teac_position =Column(String(100),comment='老师职位')
 
     create_date=Column(DATETIME,default=datetime.now)