Python Challenge Level 6

时间：2014-12-20 15:34:14 收藏：0 阅读：265

惭愧，这一题是参考别人的博客做出来的，主要的难点在

1.怎么得到zip文件

2.comments是个什么东西，原作者也在博客中吐槽“ what the hell are the comments?"

从这一题中我发现

1.提示信息不一定只在本网页，可以适当修改网址获取另外的信息。

2.对于提示中你所不能理解的信息如本题中的”comments“可以尝试在python doc中搜索（这一点往往是解题的关键），还有python doc可以在你的安装文件夹中找到

代码如下：

 1 # http://www.pythonchallenge.com/pc/def/channel.html
 2 # author: nzh@cs.tju
 3 import os
 4 import sys
 5 import zipfile
 6 import re
 7 import urllib.request
 8 import urllib.response
 9 def DownloadFile(url):
10     response = urllib.request.urlopen(url)
11     zp = open(‘channel.zip‘,‘wb‘)
12     zp.write(response.read())
13     zp.close()
14 
15 def Analysis(chZip,arcname):
16     zp = zipfile.ZipFile(chZip,‘r‘)
17     zp.extractall(path=arcname)
18     zp.close()
19     flist = os.listdir(arcname)
20     for f in flist:
21         txfile = open(arcname+f,‘r‘)
22         for line in txfile:
23             print(line)
24 
25 def Flow(chZip,beg):
26     zp = zipfile.ZipFile(chZip,‘r‘)
27     nameList = zp.namelist()
28     nowFile = beg
29     dirPath = ‘./channel/‘
30     pat = re.compile(‘\d{1,5}‘)
31     comments = ‘‘
32     while True:
33         fname = nowFile + ‘.txt‘
34         comments += str(zp.getinfo(fname).comment,encoding=‘utf-8‘)
35         zp.extract(fname,path=dirPath)
36         f = open(dirPath + fname,‘r‘)
37         content = f.readline()
38         matchs = pat.findall(content)
39 
40         if len(matchs) != 0:
41             nowFile = matchs[0]
42         else:
43             break
44     return comments
45 if __name__ == ‘__main__‘:
46     nowUrl = r‘http://www.pythonchallenge.com/pc/def/channel.zip‘
47     DownloadFile(nowUrl)
48     #Analysis(‘channel.zip‘,‘./channel/‘)
49     print(Flow(‘channel.zip‘,‘90052‘))