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python 替換字串中的字元

import os 
import re

ls = []
lr = []
r = re.compile(r'\jackliu\\')
# path = r"C:\Users\jackliu\Desktop\packages"
# new = r.sub('',path)

def findFile():
	n = 1
	for root,dirr,files in os.walk("C:\Users\jackliu\Desktop\packages"):

		ls.append(root)
		# print root
		pass
	# print "root:%s"%type(root)
	# for root,dirr,files in os.walk("C:\Users\jackliu\Desktop\packages"):
	# 	print dirr
	# 	n -= 1
	# 	while n < 1:
	# 		break
	# print "dirr:%s"%type(dirr)	
	# print "files:%s"%type(files)	
	for line in ls:
		rline = r.sub('',line)
		lr.append(rline)
	# print ls
	# print lr

	for ll in lr:
		print ll
findFile()
sub函式