用来抽奖用的程序

select_member.py

import requests
import datetime
from bs4 import BeautifulSoup
import random

def get_page(url):
    r=requests.get(url,headers={"content-type":"text","User-Agent":"Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11"})
    return BeautifulSoup(r.text)


def get_member():
    url="http://v2ex.com/t/70983"
    dom = get_page(url)
    members = []
    for node in dom.find_all("strong"):
        for sub in node.contents:
            if u"member" in unicode(sub):
                members.append(node.get_text())
    return members

def main():
    members = get_member()
    random.shuffle(members)
    select_idx = random.randint(0,len(members)-1)
    print "execued at %s"%datetime.datetime.now()
    print "the winner is %s"%members[select_idx]


if __name__ == "__main__":
    main()