代碼如下：

#coding:gbkimport urllib2,urllib,cookielib,re''' 通用的登陸DZ論壇 參數說明parms:   username:用戶名(必填),   password :密碼(必填),   domain:網站域名，注意格式必須是：http://www.xxx.xx/(必填),   answer:問題答案,   questionid:問題ID,   referer:跳轉地址    這里使用了可變關鍵字參數(相關信息可參考手冊)'''def login_dz(**parms):  #初始化  parms_key = ['domain','answer','password','questionid','referer','username']  arg = {}  for key in parms_key:    if key in parms:      arg[key] = parms[key]    else:      arg[key] = ''        #cookie設置  cookieFile = './kan_cookies.dat'  cookie = cookielib.LWPCookieJar()  opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookie))  #獲取formhash  pre_login = arg['domain']+'member.php?mod=logging&action=login&infloat=yes&handlekey=login&inajax=1&ajaxtarget=fwin_content_login'  c = opener.open(pre_login).read()  cookie.save(cookieFile)  patt = re.compile(r'.*?name="formhash".*?value="(.*?)".*?')  formhash = patt.search(c)  if not formhash:    raise Exception('GET formhash Fail!')  formhash = formhash.group(1)  #登陸  postdata = {   'answer':arg['answer'],   'formhash':formhash,   'password':arg['password'],   'questionid':0 if arg['questionid']=='' else arg['questionid'],   'referer':arg['domain'] if arg['referer']=='' else arg['referer'],   'username':arg['username'],    }  postdata = urllib.urlencode(postdata)  req = urllib2.Request(    url= arg['domain']+'member.php?mod=logging&action=login&loginsubmit=yes&handlekey=login&loginhash=LCaB3&inajax=1',    data=postdata    )  c = opener.open(req).read(300)  flag = '登陸失敗 %s'%arg['username']  if 'succeedhandle_login' in c:    flag = True  return flag#使用例子：基本參數登陸user='xxx'pwd='xxx'dom='http://www.discuz.net/' #另一個測試網站：http://bbs.jb51.net/try:  flag = login_dz(username=user,password=pwd,domain=dom)  print(flag)except Exception,e:  print('Error:',e)