save project

diy.py

-goods = {"可口可乐":3,"旺仔牛奶"：4，"农夫山泉":3，"辣条"：9，}
-goods.pop("农夫山泉")
-print(goods)
-goods = {}
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+score = {'语文'：91，'数学'：88,'英语'：85}
+
+for k,v in score.iteme():
+    print(k,v)
+
+for k in score.valuse():
+    print(k)
+
+for k in score.kev():
+    print(k)
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