2.20

  1 python_vocabulary = {'import this': 'Zen of python',
  2                      'insert': '插入',
  3                      'range': '范围',
  4                      'popped': '术语弹出'
  5                      }
  6 print(python_vocabulary)
  7 
  8 for vocabulary, means in python_vocabulary.items():  # 第二部分包含字典名和方法items()
  9     print('\nvocabulary: ' + vocabulary)
 10     print('means: ' + means)
 11 
 12 python_vocabulary['append'] = '向列表中添加元素'
 13 python_vocabulary['set()'] = '剔除重复的值'
 14 python_vocabulary['keys()'] = '字典键'
 15 python_vocabulary['values()'] = '字典值'
 16 python_vocabulary['items()'] = '无法描述（重点）'
 17 
 18 for key,values in python_vocabulary.items():
 19     print('\nVocabulary: ' + key)
 20     print('\nmeans: ' + values)
 21 
 22 rivars = {'China':'changjiang','nile':'egypt','brazil':'amazon'}
 23 for country,rivar in rivars.items():
 24     print('The '+ rivar.title() + ' runs through ' + country.title() + '.')
 25 
 26 # for country in rivars.items(): #.keys()与.value() 位置和输入错误 下文订正
 27 #     print (rivars.key())
 28 # for rivar in rivars.items():
 29 #     print (rivars.value())
 30 for country in rivars.keys():
 31     print (country.title())
 32 for rivar in rivars.values():
 33     print (rivar.title()) #.title()少输入括号后 显示异常
 34 # <built-in method title of str object at 0x029E5640>
 35 # <built-in method title of str object at 0x029E57A0>
 36 # <built-in method title of str object at 0x029E4F80>
 37 # <built-in method title of str object at 0x02A79B60>
 38 # <built-in method title of str object at 0x02A57280>
 39 # <built-in method title of str object at 0x025CCFC0>
 40 
 41 aliens = []
 42 for alien_number in range(30):
 43     new_alien = {'color': 'green', 'points': 5, 'speed': 'slow'}
 44     aliens.append(new_alien)
 45 for alien in aliens[:5]:
 46     print(alien)
 47 print('...')
 48 print(str(len(aliens)))
 49 
 50 for alien in aliens[0:3]:  # 切片语法还未熟练
 51     if alien['color'] == 'green':
 52         alien['color'] = 'yellow'
 53         alien['speed'] == 'medium'
 54         alien['points'] = 10
 55 
 56 for alien in aliens[:5]:
 57     print(alien)  # 多打s则变为打印列表
 58 
 59 favorite_languages = {
 60     'jen': ['python', 'ruby'],
 61     'sarah': ['c'],
 62     'edward': ['ruby', 'go'],
 63     'phil': ['python', 'haskell'],
 64 }
 65 for name, languages in favorite_languages.items():
 66     if len(languages) >= 2:
 67         print("\n" + name.title() + "'s favorite languages are:")
 68     else:
 69         print("\n" + name.title() + "'s favorite languages is:")
 70     for language in languages:#此处for循环不可与上个for循环缩进相同
 71         print("\t" + language.title())
 72 
 73 # 练习6-1  6-1 人 ：使用一个字典来存储一个熟人的信息，包括名、姓、年龄和居住的城市。该字典应包含键
 74 # first_name 、last_name 、age 和city 。将存储在该字典中的每项信息都打印出来。
 75 
 76 shiitakeimoto = {'first_name': 'ying', 'last_name': 'ying', 'age': 22, 'city': 'fuzhou'}
 77 ergou = {'first_name': 'lin', 'last_name': 'zhu', 'age': 24, 'city': 'shanghai'}
 78 erzi = {'first_name': 'junqin', 'last_name': 'cai', 'age': 25, 'city': 'kunming'}
 79 
 80 people = [shiitakeimoto, ergou, erzi]
 81 for name in people:
 82     print(name)
 83 #错误例子
 84 # nike = {'zhonglei':'taidi','zhuern':'ergou'}
 85 # doudou = {'zhonglei':'yingduan','zhuren':'momoe'}
 86 # pingtou = {'zhonglei':'shuilan','zhuren':'erzi'}
 87 
 88 pets = {'nike': {'zhonglei': 'taidi', 'zhuern': 'ergou'}, 'doudou': {'zhonglei': 'yingduan', 'zhuren': 'momoe'},
 89         'pingtou': {'zhonglei': 'shuilan', 'zhuren': 'erzi'}, }
 90 
 91 # pets = {nike,doudou,pingtou}
 92 print(pets)
 93 
 94 users = {'aeinstein': {'first': 'albert', 'last': 'einstein', 'location': 'princeton', },
 95          'mcurie': {'first': 'marie', 'last': 'curie', 'location': 'paris', }, }
 96 print(users)
 97 
 98 favorite_places = {'ergou':['suzhou','shanxi','shenzhen'],'erzi':['osaka','kyoto'],'momoe':['liancang']}
 99 favorite_places['shiitakeimoto'] = ['taiba','suizokukan','jinnjya']
100 for name,places in favorite_places.items():
101     if len(places) >= 2:
102         print(name.title() + '\'s favorite places are:' )
103     else:
104         print(name.title() + '\'s favorite place')
105     for place in places:
106             print('\t' + place.title())
107 
108 
109 message = input("Tell me something, and I will repeat it back to you: ")
110 print(message)

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