我的简单网络爬虫

断断续续地学习了一段时间的Python，把我的网络爬虫程序写在以下，供自己查阅复习吧！

  

# -*- coding: cp936 -*-
import urllib
page = 1
head = 'http://blog.sina.com.cn/s/articlelist_1191258123_0_'
end = '.html'
i = 0
while page <= 7:
    url = head + str(page) + end
    print url   
    con0 = urllib.urlopen(url).read()
    con = con0
    while con.find(r'<a title=') != -1:
        a0 = con.find(r'<a title=')
        if con.find(r'href=',a0) != -1:
            a1 = con.find(r'href=',a0)
            if con.find(r'html">',a1) != -1:
                b1 = con.find(r'html">',a1)
                url1 = con[a1+6 : b1+4] 
                i = i + 1
                print i ,':', url1
                content = urllib.urlopen(url1).read()
                if url1.find('blog_') != -1:
                    c1 = url1.find('blog_')
                    open(url1[c1 :],'w').write(content)
                con = con[b1+4:] 
    page = page + 1