diff --git a/Teachers/api/tea_api.py b/Teachers/api/tea_api.py
index 26715bb..7d86fc8 100644
--- a/Teachers/api/tea_api.py
+++ b/Teachers/api/tea_api.py
@@ -28,13 +28,17 @@ def delete_tea(id:int|None,db=Depends(get_db)):
         raise HTTPException(status_code=500,detail='删除失败！')
     return {'detail':'删除成功！'}
 
-@tea_api.put('/tea/{id}',summary='更新老师信息',description='输入更改的信息，可以为空')
-def update_tea(id:int,tea:NewTeaRequest,db=Depends(get_db)):
-    t = tea.model_dump(exclude_unset= True)
-    r = update_tea_dao(id=id,t=t,db=db)
-    if not r:
-        raise HTTPException(status_code=404,detail='老师不存在')
-    return {'detail':'更新成功'}
+@tea_api.put('/tea/{id}', summary='更新老师信息', description='输入更改的信息，可以为空')
+def update_tea(id: int, tea: NewTeaRequest = Depends(), db=Depends(get_db)):
+    t = tea.model_dump(exclude_unset=True)
+    r = update_tea_dao(id=id, t=t, db=db)
+    if r == 'NOT_FOUND':
+        raise HTTPException(status_code=404, detail='老师不存在')
+    if r == 'NO_CHANGE':
+        raise HTTPException(status_code=400, detail='没有要更新的内容')
+    if isinstance(r, str) and r.startswith('ERROR'):
+        raise HTTPException(status_code=400, detail=r)
+    return {'detail': '更新成功'}
 
 #根据任意信息删除
 @tea_api.delete('/tea',summary='根据任意信息逻辑删除',description='输入任意信息删除')
diff --git a/Teachers/dao/tea_dao.py b/Teachers/dao/tea_dao.py
index 1820930..655bc9d 100644
--- a/Teachers/dao/tea_dao.py
+++ b/Teachers/dao/tea_dao.py
@@ -29,15 +29,22 @@ def add_tea_dao(t,db):
 
 
 #更新
-def update_tea_dao(id,t, db):
+def update_tea_dao(id, t, db):
     try:
-        row = db.query(Tea).filter(Tea.id == id,Tea.is_delete ==False ).update(t)
-    except:
-        db.rollback()
-        return False
-    else:
+        if not t:
+            return 'NO_CHANGE'
+        obj = db.query(Tea).filter(Tea.id == id, Tea.is_delete == False).first()
+        if not obj:
+            return 'NOT_FOUND'
+        for k, v in t.items():
+            if hasattr(obj, k):
+                setattr(obj, k, v)
         db.commit()
-        return row
+        return 'OK'
+    except Exception as e:
+        db.rollback()
+        print('更新失败原因', repr(e))
+        return f'ERROR: {e}'
 
 #查询
 def get_tea_dao(t,db):
diff --git a/Teachers/main.py b/Teachers/main.py
index bd87a8d..cb1251b 100644
--- a/Teachers/main.py
+++ b/Teachers/main.py
@@ -15,7 +15,7 @@ if __name__ == "__main__":
     Base.metadata.create_all(engine1)
 
     import uvicorn
-    uvicorn.run('main:app', host='0.0.0.0', port=57000)
+    uvicorn.run('main:app', host='0.0.0.0', port=56000)
     """
     IPv4 地址 . . . . . . . . . . . . : 192.168.1.51
     子网掩码  . . . . . . . . . . . . : 255.255.255.0