auto save

diy2.py

 score = {'语文':91,'数学':88,'英语':85}
+score1 = {'语文':100,'数学':98,'英语':88}
+score2 = {'语文':95,'数学':80,'英语':75}
 
+student={'悟空':score,'小贝':score1,'诺一':score2}
+for i in score.keys():
+    print(i)
+for j in score.values():
+    print(j)
+for j,i in score.items():
+    print(j,i)
 # 请对字典进行遍历，将保存的分数以键值对的形式提取打印出来