Python 有趣的join函数

今天真是见识了python在字符串处理上的强大了，一个小函数的用法如此有趣！

>>> " ".join(["People's","Republic","of","China"])

People's Republic of China

>>> params = {"server":"mpilgrim", "database":"master", "uid":"sa", "pwd":"secret"}

>>> ["%s=%s" % (k, v) for k, v in params.items()]

['server=mpilgrim', 'uid=sa', 'database=master', 'pwd=secret']

>>> ";".join(["%s=%s" % (k, v) for k, v in params.items()])

'server=mpilgrim;uid=sa;database=master;pwd=secret'

逆向分割

>>> 'server=mpilgrim;uid=sa;database=master;pwd=secret'.split(";")

['server=mpilgrim', 'uid=sa', 'database=master', 'pwd=secret']

>>> li = 'server=mpilgrim;uid=sa;database=master;pwd=secret'.split(";")

>>> d={}

>>> for tt in li:

>>> t=tt.split("=")

>>> d[t[0]]=t[1]

>>> d

{'database': 'master', 'pwd': 'secret', 'server': 'mpilgrim', 'uid': 'sa'}