Python读写unicode文件的方法

#coding=utf-8 
import os 
import codecs 
def writefile(fn, v_ls): 
 f = codecs.open(fn, 'wb', 'utf-8') 
 for i in v_ls: 
 f.write(i + os.linesep) 
 f.close() 
def readfile(fn): 
 f = codecs.open(fn,'r','utf-8') 
 ls = [ line.strip() for line in f] 
 f.close() 
 for i in ls: 
 print i 
if __name__ == '__main__': 
 fn = u'11.txt'
 ls = [u'1.python', u'2.how to pythonic', u'3.python cook', u'python编程'] 
 writefile(fn, ls) 
 readfile(fn)