根据别人的算法用python实现

#!/usr/bin/python

from os.path import basename, isdir
from os import listdir

def traverse(path, depth=0):
prefix = depth* '| ' '|_'
if(isdir(path)):
print prefix, basename(path)
for item in listdir(path):
traverse(path '/' item, depth 1)
else:
print prefix, basename(path)

if __name__ == '__main__':
traverse('./')