Python练习----download

这个是我最近学Python做的小脚本

#!/usr/bin/python

import subprocess
import re
import os

url_=input('please input your url:')
url_1='http://%s' %url_
cmd='wget %s' %url_1

subprocess.call(cmd,shell=True)

if re.search('\/[^/]+',url_) is None:
         filename='index.html'
else:
         res=re.search('\/[^/]+',url_).group()
         filename=re.search('\w+',res).group()


subprocess.call('touch /download/url_in_web.txt',shell=True)

f2=open('url_in_web.txt','w+',encoding='utf-8')

with open(filename,'r',encoding='utf-8') as f:
         for line in f:
                 if re.search('\"[^""]+\"',line) is None:
                         continue
                 else:
                         new_line=re.search('\"[^""]+\"',line,flags=0).group()
                         f2.writelines(new_line+'\n')
f2.close()


with open('url_in_web.txt','r',encoding='utf-8') as f3:
         for line_1 in f3:
                 if re.search('^\"\w+',line_1) is None:
                         continue
                 else:
                         line_2=re.search('[^""]+',line_1).group()
                         cmd_5='wget %s' %(url_1+'/'+line_2)
                         print(cmd_5)
                         subprocess.call(cmd_5,shell=True)