添加一些注释

Teachers/api/tea_api.py

@@ -15,6 +15,7 @@ def add_tea(tea: NewTeaRequest=Depends(),db=Depends(get_db)):
     if not r:
         raise HTTPException(status_code=500,detail='添加失败！')
     return TeaResponse(totals=1,data=tea.model_dump())
+
 @tea_api.get('/tea',response_model=TeaResponse,summary='查询老师',description='任意选择输入的信息数量，不输入则查询全部老师')
 def get_tea(t:TeaRequest=Depends(),db=Depends(get_db)):   #开启会话窗口
     r = get_tea_dao(t.model_dump(),db=db)

Teachers/dao/tea_dao.py

@@ -14,7 +14,9 @@ def add_tea_dao(t,db):
         if existing:
             for key,value in t.items():
                 if hasattr(existing,key) and value is not None and value != '':
+                    #hasattr(existing,key)统计有没有key，返回值是True或False
                     setattr(existing,key,value)
+                    #将value的值赋值到existing的key中，配合循环，让所有输入的信息都覆盖原信息
             existing.is_delete = False
             db.commit()
             return '恢复修改成功'