auto save

diy2.py

 score = {'语文':91,'数学':88,'英语':85}
+for i in score:
+    print(i)
+for j in score.values():
+    print(j)
 for i,j in score.items():
-    print(i+"："+str(j))
+    print(i,":",j,sep="")
+    
 # 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