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:
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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)
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希望本文所述对大家的Python程序设计有所帮助。