auto save

diy3.py

@@ -5,7 +5,9 @@ score = {'悟空': student1, '诺依': student2, '小贝': student3}
 
 
 name = input("名字：")
-
+if name in score:
 # 查询并打印出输入的名字对应的所有科目的成绩
-for a,b in score[name].items():
-    print(a,b)
+    for a,b in score[name].items():
+        print(a,b)
+else:
+    print(2)