diff --git a/dao/score.py b/dao/score.py
index e0b53e5..eecfa60 100644
--- a/dao/score.py
+++ b/dao/score.py
@@ -5,23 +5,27 @@ def post_score_dao(data_dict, db):
     try:
         obj = Score(**data_dict)
         db.add(obj)
+        db.commit()
     except Exception as e:
         print("新增成绩异常：", e)
         db.rollback()
         return False
     else:
-        db.commit()
         return True
 
 
 def update_score_dao(score_id, db, updates):
     """修改成绩，query.update方式"""
     try:
-        db.query(Score).filter(
+        cnt = db.query(Score).filter(
             Score.id == score_id,
             Score.is_deleted == 0
         ).update(updates)
-    except Exception:
+        if cnt == 0:
+            db.rollback()
+            return False
+    except Exception as e:
+        print("修改成绩异常：", e)
         db.rollback()
         return False
     else: