#Author:Mr Li data = { "嘉兴":{ "海盐" :{"hai":{}}, "南湖":{"nan":{}}, "秀洲":{"xiu":{}} }, "温州":{ "平阳":{"ping":{}}, "鹿城":{"lu":{}}, "瓯海":{"ou":{}} } } while True: for i in data: print(i) choice = input("请选择:") if choice in data: while True: for i2 in data[choice]: print(i2) choice1 = input("请选择:") if choice1 in data[choice]: while True: for i3 in data[choice][choice1]: print(i3) choice2 = input("请输入B:") if choice2 == "B": break if choice1 == "B": break else: print("no choice,please try again\n") 此代码主要练习嵌套字典,字典存储相关知识,熟悉键和值。
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