postdata = { 
    'c': content, #1  你要评论的内容 
    'owner': owner, #2 该状态的所有者ID 
    'source': source, #3 该状态的ID 
    't': 3, #4  这条不用修改 
    'requestToken': xxx, #5  上图选中部分 
    '_rtk': 'xxx', #6  上图选中部分 
  } 

#coding=utf8 
import re 
import urllib 
import urllib2 
import time 
from bs4 import BeautifulSoup 
 
__author__ = 'SnOw' 
COOKIE = '你自己COOKIE' 
HEADERS = {'cookie': COOKIE, 
      'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36' 
} 
TARGET_ID = set(['5002986XX']) #存放需要抢沙发的好友ID 
REPLY_ID = set() 
 
def load_status(): 
  URL = 'http://www.renren.com/' 
  req = urllib2.Request(URL, headers=HEADERS) 
  page = '' 
  try: 
    page = urllib2.urlopen(req).read() 
  except: 
    print 'urlopen error' 
  soup = BeautifulSoup(page) 
  for i in soup.find_all('figure'): 
    # print i.get('data-id') 
    if i.get('data-id') in TARGET_ID: 
      owner_id = i.get('data-id') 
      source_id = i.get('data-source') 
      if source_id not in REPLY_ID: 
        auto_reply(owner_id, source_id) 
        print i.get('data-id') + ' ' + source_id 
      else: 
        print 'replyed this status' 
 
def auto_reply(owner, source): 
  url = 'http://status.renren.com/feedcommentreply.do" ~" 
  postdata = { 
    'c': content, #1 
    'owner': owner, #2 
    'source': source, #3 
    't': 3, #4 
    'requestToken': -7683150XX, #5 自己修改 
    '_rtk': '9df56fXX', #6<span style="white-space:pre;">  </span>自己修改 
  } 
  req = urllib2.Request(url, urllib.urlencode(postdata), headers=HEADERS) 
  page = urllib2.urlopen(req).read() 
  REPLY_ID.add(source) 
 
 
while True: 
  load_status() 
  time.sleep(20) 
  print time.strftime('%H:%M:%S')