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)