《Python编程：从入门到实践》习题答案——第6章 字典

# 6-1 人
ElonMusk= {'first_name':'Elon', 'last_name':'Musk', 'age':'53', 'city':'Pretoria'}
 
for key,value in ElonMusk.items():
	print(key, ':', value)
 
# 6-2 喜欢的数字
favorite_number = {
    'Tesla':'4',
    'BMW':'2',
    'NIO':'1',
    'Huawei':'6',
    'BYD':'8',
}
 
for k,v in favorite_number.items():
	print(k + "'s favorite number is " + v)
 
# 6-3 词汇表
dics = {
    'int': '整形',
    'bool': '布尔类型',
    'float': '浮点型',
    'str': '字符串',
    'list': '列表',
}
print("int" + ":" + dics["int"])
print("bool" + ":" + dics["bool"])
print("float" + ":" + dics["float"])
print("str" + ":" + dics["str"])
print("list" + ":" + dics["list"])
 
# 6-4 词汇表2
dics = {
    'int': '整形',
    'bool': '布尔类型',
    'float': '浮点型',
    'str': '字符串',
    'list': '列表',
}
for k,v in dics.items():
    print(k + ':' + v)
 
# 6-5 河流
rivers = {
    "ChangJiang":"China",
    "Nile":"Egypt",
    "Amazon":"Brazil",
}
for k,v in rivers.items():
    print(f"The {k} runs through {v}")
for k in rivers.keys():
    print(k)
for v in rivers.values():
    print(v)
 
# 6-6 调查
favorite_languages = {
    'jen':'python',
    'sarah':'c',
    'edward':'ruby',
    'phil':'python',
}
 
names = ['Musk', 'sarah', 'phil', 'LiMing']
 
lists = []
for k in favorite_languages.keys():
    lists.append(k)
 
for name in names:
    if name in lists:
        print(f"{name}:Thank You！")
    else:
        print(f"{name}:Invite!")
 
# 6-7 人
ElonMusk= {'first_name':'Elon', 'last_name':'Musk', 'age':'53', 'city':'Pretoria'}
MaYun= {'first_name':'Yun', 'last_name':'Ma', 'age':'60', 'city':'HangZhou'}
WangChuanfu= {'first_name':'Chuanfu', 'last_name':'Wang', 'age':'58', 'city':'ShenZhen'}
 
peoples = [ElonMusk, MaYun, WangChuanfu]
for people in peoples:
    print(people)
 
# 6-8 宠物
feifei = {'type':'dog', 'master':'alien'}
little_cute = {'type':'cat', 'master':'alice'}
huahua = {'type':'panda', 'master':'tan'}
 
pets = [feifei, little_cute, huahua]
for pet in pets:
    print(pet)
 
# 6-9 喜欢的地方
favorite_places = {
    'feifei':['Beijing', 'SuZhou'],
    'Bob':['ShangHai','HangZhou', 'ShenZhen'],
    'huahua':['Chengdu', 'ChongQing'],
}
for fp_k,fp_v in favorite_places.items():
    print(f"\n{fp_k}'s favorite places are:" )
    for v in fp_v:    # 注意下
        print(v)
 
# 6-10 喜欢的数字
favorite_number = {
    'Tesla':['4','5','6'],
    'BMW':['5','6','7'],
    'NIO':['1','2','3'],
    'Huawei':['2','3','4'],
    'BYD':['3','4','5'],
}
 
for fn_k,fn_v in favorite_number.items():
    print(f"\n{fn_k}'s favorite numbers are:")
    for v in fn_v:
        print(v)
 
# 6-11 喜欢的数字
citys = {
    'ChengDu':{
        'country': 'China',
        'population': '1200 0000',
        'fact': 'panda'
    },
    'ShangHai':{
        'country': 'China',
        'population': '2300 0000',
        'fact': 'The Bund'
    },
    'LosAngeles': {
        'country': 'America',
        'population': '400 0000',
        'fact': 'Hollywood'
    }
}    # 字典中嵌套了三个字典
 
for k,v in citys.items():
    print(f"\n{k}:")
    for k1,v1 in v.items():
        print(f"\t{k1}:{v1}")
 
# 6-12 拓展