python中怎么实现分布式抓取网页_程序开发

python中怎么实现分布式抓取网页

创始人

2024-12-26 01:42:25

0次

[python]
view plaincopy

'''''
Created on 2010-9-15
@author: chenggong
'''
import urllib2
import re
import socket
DEBUG = 0
'''''
工具类
'''
class Tools():
#log函数
@staticmethod
def writelog(level,info,notify=False):
if DEBUG == 0:
try:
print "["+level+"]"+info.decode('UTF-8').encode('GBK')
except:
print "["+level+"]"+info.encode('GBK')
else:
print "["+level+"]"+info
#if notify:
# print "[notify]报告管理员!!"
#转unicode
@staticmethod
def toUnicode(s,charset):
if( charset == "" ):
return s
else:
try:
u = unicode( s, charset )
except:
u = ""
return u
#正则抓取
#@param single 是否只抓取一个
@staticmethod
def getFromPatten(patten,src,single=False):
rst = "";
p = re.compile(patten,re.S)
all = p.findall(src)
for matcher in all:
rst += matcher + " "
if( single ):
break
return rst.strip()
'''''
网页内容爬虫
'''
class PageGripper():
URL_OPEN_TIMEOUT = 10 #网页超时时间
MAX_RETRY = 3 #最大重试次数
def __init__(self):
socket.setdefaulttimeout(self.URL_OPEN_TIMEOUT)
#获取字符集
def getCharset(self,s):
rst = Tools.getFromPatten(u'charset=(.*?)"',s,True)
if rst != "":
if rst == "utf8":
rst = "utf-8"
return rst
#尝试获取页面
def downloadUrl(self,url):
charset = ""
page = ""
retry = 0
while True:
try:
fp = urllib2.urlopen(url)
break
except urllib2.HTTPError,e: #状态错误
Tools.writelog('error','HTTP状态错误 code='+e.code)
raise urllib2.HTTPError
except urllib2.URLError,e: #网络错误超时
Tools.writelog('warn','页面访问超时,重试..')
retry+=1
if( retry > self.MAX_RETRY ):
Tools.writelog('warn','超过最大重试次数,放弃')
raise urllib2.URLError
while True:
line = fp.readline()
if charset == "":
charset = self.getCharset(line)
if not line:
break
page += Tools.toUnicode(line,charset)
fp.close()
return page
#获取页面
def getPageInfo(self,url):
Tools.writelog( "info","开始抓取网页,url= "+url)
info = ""
try:
info = self.downloadUrl(url)
except:
raise
Tools.writelog("debug","网页抓取成功")
return info
'''''
内容提取类
'''
class InfoGripper():
pageGripper = PageGripper()
def __init__(self):
Tools.writelog('debug',"爬虫启动")
#抓取标题
def griptitle(self,data):
title = Tools.getFromPatten(u'box2t sp">
(.*?)
', data, True)
if title == "":
title = Tools.getFromPatten(u'(.*?)[-<]',data,True) </li><li> return title.strip() </li><li> </li><li> #抓取频道</li><li> def gripchannel(self,data): </li><li> zone = Tools.getFromPatten(u'频道：(.*?)',data,True) </li><li> channel = Tools.getFromPatten(u'<a.*?>(.*?)</a>',zone,True) </li><li> return channel </li><li> </li><li> #抓取标签</li><li> def griptag(self,data): </li><li> zone = Tools.getFromPatten(u'标签：(.*?)</[^a].*>',data,True); </li><li> rst = Tools.getFromPatten(u'>(.*?)</a>',zone,False); </li><li> return rst </li><li> </li><li> #抓取观看次数</li><li> def gripviews(self,data): </li><li> rst = Tools.getFromPatten(u'已经有(.*?)次观看',data); </li><li> return rst </li><li> </li><li> #抓取发布时间</li><li> def griptime(self,data): </li><li> rst = Tools.getFromPatten(u'在(.*?)发布',data,True) </li><li> return rst </li><li> </li><li> #抓取发布者</li><li> def gripuser(self,data): </li><li> rst = Tools.getFromPatten(u'title="点击进入(.*?)的用户空间"',data,True) </li><li> return rst </li><li> </li><li> #获取页面字符集</li><li> def getPageCharset(self,data): </li><li> charset = Tools.getFromPatten(u'charset=(.*?)"',data,True) </li><li> </li><li> if( charset == "utf8" ): </li><li> charset = "utf-8"</li><li> return charset </li><li> </li><li> #获取CC相关数据</li><li> def getCCData(self,data): </li><li> </li><li> zone = Tools.getFromPatten(u'SWFObject(.*?)</script>',data,True) </li><li> </li><li> #判断是否使用bokecc播放</li><li> isFromBokeCC = re.match('.*bokecc.com.*', zone) </li><li> if( not isFromBokeCC ): </li><li> return "","" </li><li> </li><li> ccSiteId = Tools.getFromPatten(u'siteid=(.*?)[&,"]',zone,True) </li><li> ccVid = Tools.getFromPatten(u'vid=(.*?)[&,"]',zone,True) </li><li> return ccSiteId,ccVid </li><li> </li><li> #获取站内vid</li><li> def gripVideoId(self,data): </li><li> vid = Tools.getFromPatten(u'var vid = "(.*?)"',data,True) </li><li> return vid </li><li> </li><li> #获取点击量</li><li> def gripViewsAjax(self,vid,url,basedir): </li><li> host = Tools.getFromPatten(u'http://(.*?)/',url,True) </li><li> ajaxAddr = "http://" + host + basedir + "/index.php/ajax/video_statistic/" + vid </li><li> '''''</li><li> try:</li><li> content = self.pageGripper.getPageInfo(ajaxAddr)</li><li> except Exception,e:</li><li> print e</li><li> Tools.writelog ("error", ajaxAddr+u"抓取失败")</li><li> return "error"</li><li> '''</li><li> Tools.writelog('debug', u"开始获取点击量,url="+ajaxAddr) </li><li> while True: </li><li> try: </li><li> fp = urllib2.urlopen(ajaxAddr) </li><li> break</li><li> except urllib2.HTTPError,e: #状态错误</li><li> Tools.writelog('error','HTTP状态错误 code='+"%d"%e.code) </li><li> return "" </li><li> except urllib2.URLError,e: #网络错误超时</li><li> Tools.writelog('warn','页面访问超时,重试..') </li><li> retry+=1</li><li> if( retry > self.MAX_RETRY ): </li><li> Tools.writelog('warn','超过最大重试次数,放弃') </li><li> return "" </li><li> content = fp.read() </li><li> fp.close() </li><li> views = Tools.getFromPatten(u'"viewcount":(.*?),',content,True) </li><li> views = views.replace('"','') </li><li> return views </li><li> </li><li> #从网页内容中爬取点击量 </li><li> def gripViewsFromData(self,data): </li><li> views = Tools.getFromPatten(u'已经有<.*?>(.*?)<.*?>次观看',data,True) </li><li> return views </li><li> </li><li> def gripBaseDir(self,data): </li><li> dir = Tools.getFromPatten(u"base_dir = '(.*?)'",data,True) </li><li> return dir </li><li> </li><li> #抓取数据</li><li> def gripinfo(self,url): </li><li> </li><li> try: </li><li> data = self.pageGripper.getPageInfo(url) </li><li> except: </li><li> Tools.writelog ("error", url+" 抓取失败") </li><li> raise</li><li> </li><li> Tools.writelog('info','开始内容匹配') </li><li> rst = {} </li><li> rst['title'] = self.griptitle(data) </li><li> rst['channel'] = self.gripchannel(data) </li><li> rst['tag'] = self.griptag(data) </li><li> rst['release'] = self.griptime(data) </li><li> rst['user'] = self.gripuser(data) </li><li> ccdata = self.getCCData(data) </li><li> rst['ccsiteId'] = ccdata[0] </li><li> rst['ccVid'] = ccdata[1] </li><li> views = self.gripViewsFromData(data) </li><li> if views =="" or not views: </li><li> vid = self.gripVideoId(data) </li><li> basedir = self.gripBaseDir(data) </li><li> views = self.gripViewsAjax(vid,url,basedir) </li><li> if( views == "" ): </li><li> views = "error"</li><li> if( views == "error"): </li><li> Tools.writelog("error","获取观看次数失败") </li><li> Tools.writelog("debug","点击量:"+views) </li><li> rst['views'] = views </li><li> Tools.writelog('debug','title=%s,channel=%s,tag=%s'%(rst['title'],rst['channel'],rst['tag'])) </li><li> return rst </li><li> </li><li>'''''</li><li>单元测试</li><li>'''</li><li>if __name__ == '__main__': </li><li> list = [ </li><li> 'http://008yx.com/xbsp/index.php/video/index/3138', </li><li> 'http://vblog.xwhb.com/index.php/video/index/4067', </li><li> 'http://demo.ccvms.bokecc.com/index.php/video/index/3968', </li><li> 'http://vlog.cnhubei.com/wuhan/20100912_56145.html', </li><li> 'http://vlog.cnhubei.com/html/js/30271.html', </li><li> 'http://www.ddvtv.com/index.php/video/index/15', </li><li> 'http://boke.2500sz.com/index.php/video/index/60605', </li><li> 'http://video.zgkqw.com/index.php/video/index/334', </li><li> 'http://yule.hitmv.com/html/joke/27041.html', </li><li> 'http://www.ddvtv.com/index.php/video/index/11', </li><li> 'http://www.zgnyyy.com/index.php/video/index/700', </li><li> 'http://www.kdianshi.com/index.php/video/index/5330', </li><li> 'http://www.aoyatv.com/index.php/video/index/127', </li><li> 'http://v.ourracing.com/html/channel2/64.html', </li><li> 'http://v.zheye.net/index.php/video/index/93', </li><li> 'http://vblog.thmz.com/index.php/video/index/7616', </li><li> 'http://kdianshi.com/index.php/video/index/5330', </li><li> 'http://tv.seeyoueveryday.com/index.php/video/index/95146', </li><li> 'http://sp.zgyangzhi.com/html/ji/2.html', </li><li> 'http://www.xjapan.cc/index.php/video/index/146', </li><li> 'http://www.jojy.cn/vod/index.php/video/index/399', </li><li> 'http://v.cyzone.cn/index.php/video/index/99', </li><li> ] </li><li> </li><li> list1 = ['http://192.168.25.7:8079/vinfoant/versionasdfdf'] </li><li> </li><li> infoGripper = InfoGripper() </li><li> for url in list: </li><li> infoGripper.gripinfo(url) </li><li> del infoGripper </li></ol>WEB服务及任务调度[python] view plaincopy<ol class="dp-py list-paddingleft-2" start="1"><li>'''''</li><li>Created on 2010-9-15</li><li></li><li>@author: chenggong</li><li>'''</li><li># -*- coding: utf-8 -*-</li><li>import string,cgi,time </li><li>from os import curdir,sep </li><li>from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer </li><li>from InfoGripper import * </li><li>import re </li><li>import MySQLdb </li><li>import time </li><li>import threading </li><li>import urllib </li><li>import urllib2 </li><li> </li><li>PORT = 8079</li><li>VERSION = 0.1</li><li>DBCHARSET = "utf8"</li><li>PARAMS = [ </li><li> 'callback', </li><li> 'sessionId', </li><li> 'retry', </li><li> 'retryInterval', </li><li> 'dbhost', </li><li> 'dbport', </li><li> 'db', </li><li> 'dbuser', </li><li> 'dbpass', </li><li> 'videoId'</li><li> ] </li><li> </li><li>DBMAP = ['video_id', </li><li> 'ccsiteid', </li><li> 'ccvid', </li><li> 'desc_url', </li><li> 'site_id', </li><li> 'title', </li><li> 'post_time', </li><li> 'author', </li><li> 'elapse', </li><li> 'channel', </li><li> 'tags', </li><li> 'create_time', </li><li> 'check_time', </li><li> 'status'] </li><li> </li><li>'''''</li><li>ERROR CODE定义</li><li>'''</li><li>ERR_OK = 0</li><li>ERR_PARAM = 1</li><li>ERR_HTTP_TIMEOUT = 5</li><li>ERR_HTTP_STATUS = 6</li><li>ERR_DB_CONNECT_FAIL = 8</li><li>ERR_DB_SQL_FAIL = 9</li><li>ERR_GRIPVIEW = 11</li><li>ERR_UNKNOW = 12</li><li> </li><li>'''''</li><li>数据库适配器</li><li>'''</li><li>class DBAdapter(object): </li><li> </li><li> def __init__(self): </li><li> self.param = {'ip':'', </li><li> 'port':0, </li><li> 'user':'', </li><li> 'pw':'', </li><li> 'db':''} </li><li> self.connect_once = False #是否连接过数据库</li><li> </li><li> '''''</li><li> 创建/更新数据库连接池</li><li> '''</li><li> def connect(self,ip,port,user,pw,db): </li><li> if( ip != self.param['ip'] or</li><li> port != self.param['port'] or</li><li> user != self.param['user'] or</li><li> pw != self.param['pw'] or</li><li> db != self.param['db']): </li><li> Tools.writelog('info','更换数据库连接池,ip='+ip+',port='+port+',user='+user+',pw='+pw+',db='+db) </li><li> try: </li><li> if self.connect_once == True: #释放上次连接</li><li> self.cur.close() </li><li> self.conn.close() </li><li> self.conn=MySQLdb.connect(user=user,passwd=pw,db=db,host=ip,port=int(port)) </li><li> self.conn.set_character_set(DBCHARSET) </li><li> self.connect_once = True</li><li> self.cur=self.conn.cursor(MySQLdb.cursors.Cursor) </li><li> self.param['ip'] = ip </li><li> self.param['port'] = port </li><li> self.param['user'] = user </li><li> self.param['pw'] = pw </li><li> self.param['db'] = db </li><li> except: </li><li> Tools.writelog('error',u'数据库连接失败',True) </li><li> raise</li><li> else: </li><li> Tools.writelog('info',u'数据库连接成功') </li><li> </li><li> '''''</li><li> 执行SQL语句</li><li> '''</li><li> def execute(self,sql): </li><li> Tools.writelog('debug',u'执行SQL: '+sql) </li><li> try: </li><li> self.cur.execute(sql) </li><li> except: </li><li> Tools.writelog('error',u'SQL执行错误:'+sql) </li><li> raise</li><li> </li><li> '''''</li><li> 查询数据库</li><li> '''</li><li> def query(self,sql): </li><li> row = {} </li><li> self.execute(sql) </li><li> row=self.cur.fetchall() </li><li> return row </li><li> </li><li> '''''</li><li> 视频错误</li><li> '''</li><li> def updateErr(self,videoId): </li><li> nowtime = time.strftime('%Y-%m-%d-%H-%M-%S',time.localtime(time.time())) </li><li> sql = "UPDATE videos SET "</li><li> sql += "check_time='" + nowtime +"',"</li><li> sql += "status=-1 "</li><li> sql += "WHERE video_id="+videoId </li><li> self.execute(sql) </li><li> self.conn.commit() </li><li> </li><li> '''''</li><li> 更新查询结果</li><li> '''</li><li> def update(self,obj,videoId,isUpdateTitle=True): </li><li> </li><li> Tools.writelog('debug','开始更新数据库') </li><li> try: </li><li> #更新video表</li><li> sql = "UPDATE videos SET "</li><li> if(obj['ccsiteId'] !="" ): </li><li> sql += "ccsiteid='" + obj['ccsiteId'] + "'," </li><li> if(obj['ccVid'] != "" ): </li><li> sql += "ccvid='" + obj['ccVid'] + "'," </li><li> if isUpdateTitle: </li><li> sql += "title='" + obj['title'] + "'," </li><li> sql += "post_time='" + obj['release'] + "'," </li><li> sql += "author='" + obj['user'] + "'," </li><li> sql += "channel='" + obj['channel'] + "'," </li><li> sql += "tags='" + obj['tag'] + "'," </li><li> nowtime = time.strftime('%Y-%m-%d-%H-%M-%S',time.localtime(time.time())) </li><li> sql += "check_time='" + nowtime +"',"</li><li> sql += "status=0 "</li><li> sql += "WHERE video_id="+videoId </li><li> </li><li> self.execute(sql) </li><li> </li><li> #更新count表</li><li> if( obj['views'] != 'error' ): </li><li> nowdate = time.strftime('%Y-%m-%d',time.localtime(time.time())) </li><li> sql = "SELECT * FROM counts WHERE "</li><li> sql += "date = '" + nowdate + "' and video_id=" + videoId </li><li> rst = self.query(sql) </li><li> if len(rst) > 0:#如果当天已有记录，则更新</li><li> sql = "UPDATE counts SET count="+obj['views'] </li><li> sql +=" WHERE video_id=" + videoId + " AND date='" + nowdate+ "'"</li><li> else:#否则插入</li><li> sql = "INSERT INTO counts VALUES"</li><li> sql += "(null," +videoId+",'"+nowdate+"',"+obj['views'] + ")"</li><li> self.execute(sql) </li><li> self.conn.commit() </li><li> Tools.writelog('debug', "db commit ok") </li><li> return ERR_OK </li><li> except Exception,e: </li><li> print e </li><li> return ERR_DB_SQL_FAIL </li><li> </li><li>'''''</li><li>任务线程类</li><li>'''</li><li>class TaskThread(threading.Thread): </li><li> </li><li> def setTaskTool(self,dbAdapter,gripper): </li><li> self.dbAdapter = dbAdapter </li><li> self.gripper = gripper </li><li> </li><li> def setParam(self,param): </li><li> self.param = param </li><li> self.videoId = param['videoId'] </li><li> assert self.videoId != "" </li><li> </li><li> def init(self): </li><li> self.views = "0"</li><li> self.errcode = ERR_OK </li><li> </li><li> def run(self): </li><li> Tools.writelog('debug','开始爬虫任务,sessionId='+self.param['sessionId']) </li><li> self.init() </li><li> try: </li><li> #更新数据库连接</li><li> self.dbAdapter.connect(self.param['dbhost'],self.param['dbport'],self.param['dbuser'],self.param['dbpass'],self.param['db']) </li><li> except: </li><li> self.errcode = ERR_DB_CONNECT_FAIL #数据库连接失败</li><li> callback(self.errcode) </li><li> return</li><li> </li><li> #查询该vid的视频</li><li> sql = "SELECT "</li><li> for column in DBMAP: </li><li> sql += column </li><li> if column != DBMAP[len(DBMAP)-1]: </li><li> sql += ","</li><li> </li><li> sql += " FROM videos"</li><li> sql += " WHERE video_id="+self.videoId </li><li> video = self.dbAdapter.query(sql) </li><li> assert not (len(video)>1 or len(video)==0) #有且仅有一条记录</li><li> </li><li> url = video[0][3] </li><li> assert url != "" </li><li> try: </li><li> rst = self.gripper.gripinfo(url) </li><li> except urllib2.HTTPError,e: </li><li> self.errcode = ERR_HTTP_STATUS #HTTP状态错误</li><li> self.dbAdapter.updateErr(self.videoId) </li><li> except urllib2.URLError,e: </li><li> self.errcode = ERR_HTTP_TIMEOUT #HTTP连接超时</li><li> self.dbAdapter.updateErr(self.videoId) </li><li> except: </li><li> self.errcode = ERR_UNKNOW #未知错误</li><li> self.dbAdapter.updateErr(self.videoId) </li><li> else: </li><li> self.views = rst['views'] </li><li> if self.views == "error": </li><li> self.views = "-1"</li><li> self.errcode = ERR_GRIPVIEW #数据抓取成功，点击量抓取失败</li><li> #更新数据库(特殊处理，如果原title中有 "-" 则不更新title字段)</li><li> title = video[0][5] </li><li> assert title != "" </li><li> if re.match('.*-.*', title): </li><li> self.errocde = self.dbAdapter.update(rst,self.videoId,True) </li><li> else: </li><li> self.errcode = self.dbAdapter.update(rst,self.videoId) </li><li> self.callback(self.errcode) </li><li> Tools.writelog('info','任务结束,sessionId='+self.param['sessionId']) </li><li> return</li><li> </li><li> def callback(self,errcode): </li><li> results = {'errorcode':errcode,'count':int(self.views)} </li><li> results = urllib.urlencode(results) </li><li> results = results.replace('&', '%26') </li><li> url = self.param['callback'] </li><li> url += "?"</li><li> url += "sessionId=" + self.param['sessionId'] </li><li> url += "&results=" + results </li><li> retry = 0</li><li> while True: </li><li> try: </li><li> Tools.writelog('debug',"回调主控,url="+url) </li><li> urllib2.urlopen(url) </li><li> Tools.writelog('debug','回调成功') </li><li> break</li><li> except urllib2.URLError, e: #超时、错误</li><li> Tools.writelog('debug','回调主控超时,%s秒后重试'%self.param['retryInterval']) </li><li> retry+=1</li><li> time.sleep(int(self.param['retryInterval'])) </li><li> if( retry > int(self.param['retry'])): </li><li> Tools.writelog('error','回调主控失败') </li><li> return</li><li> </li><li>'''''</li><li>WEB服务类</li><li>'''</li><li>class MyHandler(BaseHTTPRequestHandler): </li><li> </li><li> dbAdapter = DBAdapter() </li><li> gripper = InfoGripper() </li><li> </li><li> def pageSuccess(self): </li><li> self.send_response(200) </li><li> self.send_header('Content-type', 'text/html') </li><li> self.end_headers() </li><li> </li><li> def pageFail(self): </li><li> self.send_error(404, "not found") </li><li> </li><li> def getValue(self,param): </li><li> src = self.path + '&'</li><li> reg = param + '=' + '(.*?)&'</li><li> </li><li> value = Tools.getFromPatten(reg,src,True) </li><li> return value </li><li> </li><li> def do_GET(self): </li><li> isGetVersion = re.match('.*vinfoant/version.*', self.path) </li><li> isTask = re.match('.*vinfoant/run.*', self.path) </li><li> if( isGetVersion ): </li><li> self.pageSuccess() </li><li> self.wfile.write(VERSION) </li><li> elif( isTask ): </li><li> self.pageSuccess() </li><li> param = {} </li><li> for p in PARAMS: </li><li> param[p] = self.getValue(p) #获取各项参数</li><li> taskThread = TaskThread() </li><li> taskThread.setTaskTool(self.dbAdapter, self.gripper) </li><li> taskThread.setParam(param) </li><li> taskThread.start()#启动任务线程</li><li> self.wfile.write("ok") </li><li> else: </li><li> self.pageFail() </li><li> return</li><li> </li><li>'''''</li><li>启动WEB服务，全局入口</li><li>'''</li><li>def startHttpd(): </li><li> try: </li><li> Tools.writelog('debug','httpd start..listen on '+str(PORT)) </li><li> httpd = HTTPServer(('',PORT), MyHandler ) </li><li> Tools.writelog('debug','success') </li><li> httpd.serve_forever() </li><li> except KeyboardInterrupt: </li><li> Tools.writelog('debug','httpd close..') </li><li> httpd.socket.close() </li><li> </li><li>if __name__ == '__main__': </li><li> startHttpd() </li></ol>  </div>  <div class="mt-5">  </div> <div class="mt-5"> 上一篇：<a href="/kaifa/show-14102109.html">二维数组作为函数的实参以及定义函数形参的方法是什么</a> 下一篇：<a href="/kaifa/show-14102111.html">python代码的优化技巧</a> </div>  <div class="d-flex flex-stack mb-2 mt-10">  <h3 class="text-dark fs-5 fw-bold text-gray-800">相关内容</h3>  </div> <div class="separator separator-dashed mb-9"></div>  <div class="row g-10"> </div> </div>  </div>   <div class="col-xl-4 mt-0">  <div class="card card-flush h-md-100">  <div class="card-header pt-5 ">  <h3 class="card-title align-items-start flex-column">  <div class="d-flex align-items-center mb-2">  热门资讯  </div>  </h3>  </div>   <div class="card-body pt-3">  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537931.html" class="text-dark fw-bold text-hover-primary fs-6">空调连续工作多久需要停机休息</a> 空调连续工作的时间取决于多个因素，包括空调的型号、功率、使用环境和维护情况等。一般来说，空调可以连续... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537930.html" class="text-dark fw-bold text-hover-primary fs-6">空调哪个符号是除湿的</a> 空调除湿功能通常用一个水滴形状的符号表示。不同品牌和型号的空调遥控器可能会有所差异，但一般来说，除湿... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537929.html" class="text-dark fw-bold text-hover-primary fs-6">格力空调多长时间加一次氟利昂</a> 1、一般情况下，空调对氟利昂的使用量是非常小的，所以在空调使用了四年左右的时候再考虑加也没问题。2、... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537928.html" class="text-dark fw-bold text-hover-primary fs-6">空调用多长时间需要加氟一次</a> 一般情况下是五年。当出现以下这几种情况时，空调才需要加氟。1、空调的室内机和室外机各有两个接口，当接... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/202609/83c0c0800a58e3b.jpg')"></div> </div>   <div class="m-0"> <a href="/news/show-14537927.html" class="text-dark fw-bold text-hover-primary fs-6">格调生活·C标思享荟：卡萨帝在...</a> 9月12日的郑州龙湖金融岛，夜风轻拂，灯光璀璨。“C标时刻共传奇——卡萨帝思享荟暨20周年品牌盛典郑... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/202609/bd5bdfc6ba7da8c.jpg')"></div> </div>   <div class="m-0"> <a href="/news/show-14537926.html" class="text-dark fw-bold text-hover-primary fs-6">品牌价值破千亿、高端份额持续领...</a> 9月12日，“C标时刻共传奇——卡萨帝思享荟暨20周年品牌盛典郑州站”在郑州龙湖金融岛举办。2026... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537925.html" class="text-dark fw-bold text-hover-primary fs-6">空调主板坏了修800还是换新的</a> 空调主板坏了是修还是换新，需要考虑多个因素，以下是一些建议：1. 维修成本：如果维修费用较低，比如 ... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537924.html" class="text-dark fw-bold text-hover-primary fs-6">空调开多久需要休息多长时间</a> 问题：空调开多久需要休息多长时间回答：1、在使用空调的过程中，一般空调开7~8个小时左右需要休息2~... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537923.html" class="text-dark fw-bold text-hover-primary fs-6">中央空调多长时间清洗一次</a> 1、一般空调开机前清洗一次即可，空调开机中间时段再清洗一次，空调关机时清洗一次，这样比较合理。2、空... </div>  </div>  <div class="d-flex flex-stack mb-7">  <div class="symbol symbol-60px symbol-2by3 me-4"> <div class="symbol-label" style="background-image: url('/uploadfile/[db:缩略图]')"></div> </div>   <div class="m-0"> <a href="/weixiu/show-14537922.html" class="text-dark fw-bold text-hover-primary fs-6">中央空调氟利昂多久加一次</a> 看空调制热和制冷程度，很多人的观点认为氟利昂必须一年放一次，其实这个观点是错误的，理解上面有点偏差，... </div>  </div> </div>  </div>  </div>  </div> </div>  </div>  </div>   <div id="kt_app_footer" class="app-footer">  <div class="app-container container-xxl d-flex flex-column flex-md-row flex-center flex-md-stack py-3">  <div class="text-dark order-2 order-md-1"> 2026 © 太卓网<a href="http://www.yexian114.com/">叶县生活网</a> <a href="https://www.wxx86.cn/">编程知识网</a> <a href="http://www.kcwzh.com/">开创游戏网</a> <a href="https://www.caiding5.net">菜丁网</a><a href="http://cn.office369.com">奥飞商务网</a> <a href="http://www.zlnznjj.com/">众乐知识网</a><a href="http://www.lhjia.com/">乐活家</a><a href="http://www.nengyuan100.com/">能源100网</a> <a href="http://it.tdroid.net/">泰达科技</a><a href="http://cn.tdroid.net/">太卓开发网</a><a href="http://cn.yuansudz.com/">元素科技网</a><a href="http://www.80hlw.com/">八零商务网</a><a href="http://game.tdroid.net/">土豆游戏网</a> </div>   <ul class="menu menu-gray-600 menu-hover-primary fw-semibold order-1"> <li class="menu-item"> <a href="/news" target="_blank" class="menu-link px-2">科技资讯</a> </li> <li class="menu-item"> <a href="/jishu" target="_blank" class="menu-link px-2">技术分享</a> </li> <li class="menu-item"> <a href="/kaifa" target="_blank" class="menu-link px-2">程序开发</a> </li> <li class="menu-item"> <a href="/weixiu" target="_blank" class="menu-link px-2">设备维修</a> </li> </ul>  </div>  </div>  </div>  </div>  </div>  </div>  <div id="kt_scrolltop" class="scrolltop" data-kt-scrolltop="true">  <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"> <rect opacity="0.5" x="13" y="6" width="13" height="2" rx="1" transform="rotate(90 13 6)" fill="currentColor"></rect> <path d="M12.5657 8.56569L16.75 12.75C17.1642 13.1642 17.8358 13.1642 18.25 12.75C18.6642 12.3358 18.6642 11.6642 18.25 11.25L12.7071 5.70711C12.3166 5.31658 11.6834 5.31658 11.2929 5.70711L5.75 11.25C5.33579 11.6642 5.33579 12.3358 5.75 12.75C6.16421 13.1642 6.83579 13.1642 7.25 12.75L11.4343 8.56569C11.7467 8.25327 12.2533 8.25327 12.5657 8.56569Z" fill="currentColor"></path> </svg>  </div>  <script>var hostUrl = "/static/default/pc/";</script>  <script src="/static/default/pc/plugins/global/plugins.bundle.js"></script> <script src="/static/default/pc/js/scripts.bundle.js"></script>   </body>  </html>

python中怎么实现分布式抓取网页

(.*?)