python编程：从入门到实践第六章课后题

最新推荐文章于 2021-01-29 07:38:02 发布

胡大佬

最新推荐文章于 2021-01-29 07:38:02 发布

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分类专栏： python

本文链接：https://blog.youkuaiyun.com/qq_36974075/article/details/79647108

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本文通过几个具体的示例展示了如何使用Python进行字典的遍历操作，包括遍历字典中的数值、河流与国家对应关系以及人物的多个喜欢地点。

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6-2

fav_num = {
    'sara':10,
    'hujie':20,
    'huj':30,   
    'hai':40,
    }
for obj in fav_num:
    print(obj + "'s favorite number is " + str(fav_num[obj]) + '!')

6-5

rivers = {
        'nile':'egypt',
        'huanghe':'China',
        'amazon':'Brazil'
        }
for river in rivers:
    print("The " + river.title() + " runs through " + rivers[river].title() + '.')

for river in rivers:
    print(river)
for country in set(rivers.values()):
    print(country)

6-9

favorite_places = {
        'hujie':['shenzhen','shaoguang','shanxi'],
        'hai':["xi'an",'beijing','chengdu'],
        'di':['shenzhen','chongqing','shantou']
        }
for name,places in favorite_places.items():
    print(name.title() + "'s favorite places are: ",end='')
    for place in places:
        print(place,end=' ')
    print('')