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import urllibfrom urllib import requestimport timedef GetInfo(url):    headers = {'Host':'blog.csdn.net','Upgrade-Insecure-Requests':'1','User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36 115Browser/8.4.0','Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8','Accept-Encoding':'deflate','Accept-Language':'zh-CN,zh;q=0.8','Cookie':'uuid_tt_dd=5534972241583295096_20170723; Hm_lvt_ae0da6ae5315ea17b7070248c46e786d=1500801364; bdshare_firstime=1500801363575; __message_sys_msg_id=0; __message_gu_msg_id=0; __message_cnel_msg_id=0; __message_in_school=0; uuid=251f31c7-a055-4dbd-a1e2-860d7bc69162; avh=77069612; Hm_lvt_6bcd52f51e9b3dce32bec4a3997715ac=1502173673,1502173724,1502266846,1502360077; Hm_lpvt_6bcd52f51e9b3dce32bec4a3997715ac=1502360077; dc_tos=ougsgd; dc_session_id=1502360077644_0.7990083903386638','If-None-Match':'W/"f75bf97f893364efa173f6d16d06ff15"'}    data = None    try:        req = urllib.request.Request(url,data,headers)                    res  = urllib.request.urlopen(req)        html = res.read().decode("utf-8")        #print(html)        #input()            except:        print('error')        html = ''    return html    if __name__ == '__main__':    while True:        url = 'http://blog.csdn.net/neejack/article/details/77426425'        html = GetInfo(url)        try:            SP = html.index('"阅读次数">')+7            EP = html.index('人阅读')            cnt = html[SP:EP]            print('c',cnt)        except:            print('')        time.sleep(180)