代码如下:

# -*- coding: utf-8 -*-

import sys,os

def IsElementUniq(list):
"""
判断list中的元素是否为唯一的
"""
for word in list:
if list.count(word)>1:
return False

return True

def GenPswList():
"""
要求用户输入词，并根据单词组合密码，只尝试四个单词来组合，并密码长度为20。写的比较挫
"""
psw=raw_input('input a word>')
wordlist = []
while psw:
wordlist.append(psw)
psw=raw_input('input a word>')
print wordlist

global g_pswlist
g_pswlist = []
for word in wordlist:
g_pswlist.append(word)

for word1 in wordlist:
for word2 in wordlist:
locallist = [word1, word2]
if IsElementUniq(locallist):
tmp = word1 + word2
if len(tmp) < 20:
g_pswlist.append(tmp)

for word1 in wordlist:
for word2 in wordlist:
for word3 in wordlist:
locallist = [word1, word2, word3]
if IsElementUniq(locallist):
tmp = word1 + word2 + word3
if len(tmp) < 20:
g_pswlist.append(tmp)

for word1 in wordlist:
for word2 in wordlist:
for word3 in wordlist:
for word4 in wordlist:
locallist = [word1, word2, word3, word4]
if IsElementUniq(locallist):
tmp = word1 + word2 + word3 + word4
if len(tmp) < 20:
g_pswlist.append(tmp)

print 'gen psw is:', g_pswlist

def TestUnZipPack(filename):
"""
尝试用密码来解压压缩包
"""

command = ""
for psw in g_pswlist:
command = "7z e -p%s -y %s" %(psw,filename)
print command
ret = os.system(command)
if ret == 0:
print 'right psw is ', psw
break

def main(filename):
GenPswList()
TestUnZipPack(filename)

if __name__ == '__main__':
if len(sys.argv) != 2:
print 'argv error'
print 'example:test_7z_psw.py 1.7z'
sys.exit(1)

main(sys.argv[1])