本文实例讲述了python3实现短网址和数字相互转换的方法。分享给大家供大家参考。具体实现方法如下：

import math

import decimal

def 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)

希望本文所述对大家的Python程序设计有所帮助。

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