64 字典的创建方法.md

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字典的创建方法

Python中，你知道怎么创建字典吗

a = dict(one=1, two=2, three=3)
b = {'one': 1, 'two': 2, 'three': 3}
c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
d = dict([('two', 2), ('one', 1), ('three', 3)])
e = dict({'one': 1, 'two': 2, 'three': 3})

用字典推导（dictcomp）构建字典

dial_code = [
    (86, 'China'),
    (91, 'India'),
    (1, 'US'),
    (55, 'Brazil'),
    (7, 'Russia'),
    (81, 'Japan')
]

coutry_code = {coutry:code for code, coutry in dial_code}