python之base64模块

import base64

编码

str1 = 'xps'
str2 = base64.b64encode(str1.encode('utf8'))
print(str2)    # b'eHBz'

解码

str3 = base64.b64decode(str2)
print(str3)   # b'xps'

对url格式发字符串进行编码

url1 = "https://www.youkuaiyun.com/"
url2 = base64.urlsafe_b64encode(url1.encode('utf8'))
print(url2)   # b'aHR0cHM6Ly93d3cuY3Nkbi5uZXQv'

解码

url3 = base64.urlsafe_b64decode(url2)
print(url3)   # b'https://www.youkuaiyun.com/'