实现wget功能的程序--wget.py

[python]代码库

  1 #! /usr/bin/env python
  2 
  3 import sys,urllib
  4 def reporthook(*a): print a   #reporthook函数会在每块数据下载或传输完成后被调用，
                                  #注释：用(block number, block size, total size)这三个参数调用reporthook函数。
  5 for url in sys.argv[1:]:
  6     i = url.rfind('/')
  7     file = url[i+1:]
  8     print url,"-->",file
  9     urllib.urlretrieve(url,file,reporthook)   #返回二元组(filename, mime_hdrs)
 10    
 ===============================
运行结果：
[root@dogood pycode]# python wget.py http://www.python.org/doc/FAQ.html
http://www.python.org/doc/FAQ.html --> FAQ.html
(0, 8192, 6788)
(1, 8192, 6788)

[root@dogood pycode]# ll
total 36
drwxr-xr-x 2 root root 4096 Jan 27 04:24 chat
drwxr-xr-x 2 root root 4096 Jan 31 06:30 core16
-rw-r--r-- 1 root root 6788 Feb  1 04:27 FAQ.html   #下载的网页
-rw-r--r-- 1 root root  209 Feb  1 04:27 wget.py
[root@dogood pycode]#