auto save

diy2.py

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

diy3.py

+score = {'语文':91,'数学':88,'英语':85}
+#如何获取字典当中的键key     字典名.keys()
+for k in score.keys():
+    print(k)
+#获取字典当中的值value       字典名.values()
+for v in score.values():
+    print(v)
+#获取字典中的键值对
+for k,v in score.items():
+    print(k,v)
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