1、os.walk

2、os.path.walk

3、递归

#!/usr/bin/env python

import os

allf1 = []
alld1 = []
def visitDir1(path):
    for root, dirpath, filepath in os.walk(path):
        for f in filepath:
            allf1.append(os.path.join(root, f))
        for d in dirpath:
            alld1.append(os.path.join(root, d))

allf2 = []
def visitDir2(arg, dirname, names):
for f in names:
allf2.append(os.path.join(dirname, f))

allf3 = []
alld3 = []
def visitDir3(path):
all = [os.path.join(path, f) for f in os.listdir(path)]

dirs = [d for d in all if os.path.isdir(d)]
alld3.extend(dirs)

for d in dirs:
visitDir3(d)

files = [f for f in all if os.path.isfile(f)]
allf3.extend(files)

def test1():
addfile = open("addfile1.dat", "w")

mydir = os.getcwd()
visitDir1(mydir)

ff = [f[len(mydir)+1:len(f)] for f in allf1 if f != __file__]
ff.sort(key = lambda x:x.lower())

    fd = [f[len(mydir)+1:len(f)]+"\\" for f in alld1]
    fd.sort(key = lambda x:x.lower(), reverse = True)
    for f in ff:
        print >>addfile, f
        print f
    for f in fd:
        print >>addfile, f
        print f

def test2():
addfile = open("addfile2.dat", "w")

mydir = os.getcwd()
os.path.walk(mydir, visitDir2, None)

ff = [f[len(mydir)+1:len(f)] for f in allf2 if f != __file__ and os.path.isfile(f)]
ff.sort(key = lambda x:x.lower())

fd = [f[len(mydir)+1:len(f)]+"\\" for f in allf2 if os.path.isdir(f)]
fd.sort(key = lambda x:x.lower(), reverse = True)

    for f in ff:
        print >>addfile, f
        print f
    for f in fd:
        print >>addfile, f
        print f

def test3():
addfile = open("addfile3.dat", "w")

mydir = os.getcwd()
visitDir3(mydir)

ff = [f[len(mydir)+1:len(f)] for f in allf3 if f != __file__]
ff.sort(key = lambda x:x.lower())

    fd = [f[len(mydir)+1:len(f)]+"\\" for f in alld3]
    fd.sort(key = lambda x:x.lower(), reverse = True)
    for f in ff:
        print >>addfile, f
        print f
    for f in fd:
        print >>addfile, f
        print f

if __name__=="__main__":

    test1()
    test2()
    test3()

raw_input()

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