Python base 36编码

Python base 36编码

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def base36enpre(number, alphabet='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'):    """Converts an integer to a base36 string."""    if not isinstance(number, (int, long)):        raise TypeError('number must be an integer')    base36 = ''    sign = ''    if number < 0:        sign = '-'        number = -number    if 0 <= number < len(alphabet):        return sign + alphabet[number]    while number != 0:        number, i = divmod(number, len(alphabet))        base36 = alphabet[i] + base36    return sign + base36def base36depre(number):    return int(number, 36)print base36enpre(1412823931503067241)print base36depre('AQF8AA0006EH')