Python base64模块

import base64

import StringIO

 

a = "this is a test"

b = base64.encodestring(a)

print b

print base64.decodestring(b)

 

c = StringIO.StringIO()

c.write(a)

d = StringIO.StringIO()

e = StringIO.StringIO()

c.seek(0)

base64.encode(c, d)

print d.getvalue()

d.seek(0)

base64.decode(d, e)

print e.getvalue()

 

a = "this is a +test"

b = base64.urlsafe_b64encode(a)

print b

print base64.urlsafe_b64decode(b)