python3 短网址和数字的相互转换，python3相互转换,import mathi

python3 短网址和数字的相互转换，python3相互转换,import mathi

import mathimport decimaldef convert_to_code(num):    """    将数字转换为代码    """    def get_num(num, out=''):        num = decimal.Decimal(num)        codes = "abcdefghjkmnpqrstuvwxyz23456789ABCDEFGHJKMNPQRSTUVWXYZ"        if num > 53:            key = num % 54            num = math.floor(num / 54) - 1            return get_num(num, codes[int(key)] + out)        else:            return codes[int(num)] + out    return get_num(num)def convert_to_num(code):    """    将代码转为数字    """    import math    codes = "abcdefghjkmnpqrstuvwxyz23456789ABCDEFGHJKMNPQRSTUVWXYZ"    num = 0    num = decimal.Decimal(num)    i = len(code)    for char in code:        i -= 1        pos = codes.find(char)        num += (54 ** i) * (pos + 1)    num -= 1    # 任意数的 0 次方等于1，所以需要减去    return int(num)