博客园:被爬虫至宕机
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3月29日,国内最大且最纯粹的中文技术社区之一博客园发布故障公告:<strong style="color: blue;">下班前的暴雨,爬虫爬至园子宕机</strong>。到底是什么样的蜘蛛能让<span style="color: black;">咱们</span>的园子连续宕机呢?下面<span style="color: black;">咱们</span>就来<span style="color: black;">瞧瞧</span>到底是怎么回事儿。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">说明:下面的<span style="color: black;">文案</span>内容均来自 <strong style="color: blue;">博客园官方博客</strong>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">3月25日<span style="color: black;">第1</span>次蜘蛛爬虫事故</span></strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天12点<span style="color: black;">上下</span>,它又来了,<span style="color: black;">熟练</span>的恐怖身影(116开头IP段、山西的某个城市),不是cc攻击,是那只令人“敬畏”的蜘蛛。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2022年4月3日,它的<strong style="color: blue;">首次来访在园子里掀起<span style="color: black;">暴风</span>暴浪,数据库连接数过万,负载<span style="color: black;">平衡</span>带宽跑满,带宽扩容50%依然跑满</strong>,当时<span style="color: black;">咱们</span><span style="color: black;">经过</span>限制同一个IP<span style="color: black;">每日</span>的请求数侥幸躲过。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2022年5月4日,它如同吃了兴奋剂般变得格外疯狂,<span style="color: black;">因为</span>触发IP请求数限制被重定向到登录站点,但它那龙卷风般的天量请求直接冲垮登录站点,无奈之下,<span style="color: black;">咱们</span>屏蔽了这个IP网段。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">它有成千上万的IP,<span style="color: black;">咱们</span>屏蔽的IP网段<span style="color: black;">仅有</span>255个IP,看索引量<span style="color: black;">无</span>大的变化,<span style="color: black;">咱们</span>天真地以为影响不大,却不知<span style="color: black;">因此呢</span>得罪了中文互联网的老大。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">得罪老大的后果<span style="color: black;">便是</span>:园子遭遇2022年最悲惨的境遇——被它拉黑,在搜索结果中对园子全面降权,让<span style="color: black;">咱们</span>切身体会老大的厉害。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">懊悔</span>自己的天真,感叹老大的厉害,<span style="color: black;">咱们</span>亡羊补牢以求老大网开一面——放开了被屏蔽的IP网段。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">解除屏蔽后观察了1-2月,搜索流量并<span style="color: black;">无</span><span style="color: black;">显著</span>的回升,看来这次真的是惹怒了老大,<span style="color: black;">咱们</span>会<span style="color: black;">懊悔</span>莫及,见识了真正霸气的老大不会给你悔过的机会。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">在观察<span style="color: black;">时期</span>,<span style="color: black;">咱们</span>有了一个惊人的<span style="color: black;">发掘</span>——<span style="color: black;">每日</span>光临园子最多的竟然是它,<span style="color: black;">每日</span>竟然<span style="color: black;">拜访</span>1000多万次,园子的博文总数<span style="color: black;">亦</span>就在1000万篇<span style="color: black;">上下</span>,日理万机的它竟然会<span style="color: black;">每日</span>看园子的每篇博文,难道准备以后改行当程序员?</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">接着,<span style="color: black;">咱们</span>又有一个<span style="color: black;">发掘</span>,<strong style="color: blue;"><span style="color: black;">每日</span>千万次的<span style="color: black;">拜访</span>竟然消耗了园子近一半的带宽<span style="color: black;">花费</span></strong>,<span style="color: black;">针对</span>囊中羞涩的园子<span style="color: black;">来讲</span>有点吃不消,<span style="color: black;">每日</span>让它看园子的每篇博文,还得给它倒贴带宽费,<span style="color: black;">况且</span>在搜索排名中继续被拉黑着。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">于是,<span style="color: black;">咱们</span>采取了一个应对之策,专门<span style="color: black;">供给</span>一个负载<span style="color: black;">平衡</span>给它<span style="color: black;">拜访</span>并限制了峰值带宽,<span style="color: black;">这般</span>不仅<span style="color: black;">能够</span><span style="color: black;">掌控</span>带宽<span style="color: black;">花费</span>,<span style="color: black;">况且</span>在它发飙的时候<span style="color: black;">能够</span>减少宕机。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">从去年到今天<span style="color: black;">晌午</span>,它被<span style="color: black;">咱们</span>这个对应之策<span style="color: black;">经过</span>专用负载<span style="color: black;">平衡</span>关进笼子里,即使被限制了带宽,它<span style="color: black;">亦</span>会<span style="color: black;">非常多</span>时候给园子带来3000-4000的QPS,<span style="color: black;">因此</span>来个cc攻击,园子就格外难以撑住。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天<span style="color: black;">晌午</span>,恐怖的事情<span style="color: black;">出现</span>了,<strong style="color: blue;">它<span style="color: black;">起始</span>不遵守针对搜索引擎的dns解析</strong>,从笼子里跑出来了!</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">近一年后它依然如此彪悍,如此毫无忌惮,园子依然扛不住,除非屏蔽 IP 段,但又不敢再次得罪依然威风凛凛的老大,<span style="color: black;">日前</span>只是临时限制它所<span style="color: black;">拜访</span>的负载<span style="color: black;">平衡</span>的带宽,但这会让<span style="color: black;">拜访</span>这些负载<span style="color: black;">平衡</span>的正常用户受影响。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">非常抱歉,这个突发问题给您带来了麻烦,<span style="color: black;">咱们</span>正在进一步想办法,争取找到更好的<span style="color: black;">处理</span><span style="color: black;">办法</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【16:30】<span style="color: black;">刚才</span>试着放开<span style="color: black;">有些</span>带宽,数据库连接数<span style="color: black;">火速</span>飙升,这种并发疯狂爬取<span style="color: black;">区别</span>博文,缓存发挥不了<span style="color: black;">功效</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【16:50】这只蜘蛛今天已疯,<span style="color: black;">咱们</span>不想陪着疯,已暂时屏蔽去年屏蔽过的那个网段,屏蔽后<span style="color: black;">马上</span>恢复正常。如此疯狂的爬取<span style="color: black;">已然</span>和cc攻击没什么区别了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【19:15】今年2月,<span style="color: black;">咱们</span><span style="color: black;">经过</span>“百度搜索资源平台-反馈中心”反馈“抓取频次高的离谱,百度蜘蛛每秒请求数(QPS)竟然高达4000多”问题,百度客户竟然回复让<span style="color: black;">咱们</span>“自查整改”,吓得<span style="color: black;">咱们</span>再<span style="color: black;">亦</span>不敢向百度客服反馈问题了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【19:30】在被全面降权后,<span style="color: black;">咱们</span>被自己的经历惊呆了,百度不打一声招呼随手一掐,<span style="color: black;">每日</span>几百万的搜索流量就没了。<span style="color: black;">倘若</span>是一家依赖搜索流量的<span style="color: black;">机构</span>,百度<span style="color: black;">能够</span>随时要这家<span style="color: black;">机构</span>的命,园子<span style="color: black;">由于</span>不依赖百度流量而躲过一劫。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【20:10】又想起一则百度蜘蛛的故事,那是在2021年,百度蜘蛛模拟<span style="color: black;">区别</span>移动端屏幕尺寸的用户<span style="color: black;">每日</span>以超过百万的 UV 访问园子,但 UA 却不带百度蜘蛛的标识(<span style="color: black;">运用</span>的是正常用户移动端浏览器的UA),<span style="color: black;">导致</span>GA<span style="color: black;">这般</span>的<span style="color: black;">拜访</span>统计软件识别不出来,从而严重干扰了统计数据的准确性。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">3月29日第二次蜘蛛爬虫事故</span></strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEzSZHI2NggQ2Iqv27I6FeH7xETiatNoAwNzNzVmAxpZ8qBlibyeQPqTavw/640?wx_fmt=png&random=0.5749324907208946&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">下班前的一场暴风雨,让园子一片狼藉。顶着暴风雨,加了服务器,但无济于事。情急之中,断蛛求生立转机。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天下班前的 17:00~17:30 <span style="color: black;">上下</span>,<strong style="color: blue;">身份未明的爬虫暴风雨般地袭击园子,<span style="color: black;">导致</span>数据库连接过万,全站宕机</strong>,由此给您带来很大的麻烦,请您谅解。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">最后</span><span style="color: black;">咱们</span><span style="color: black;">经过</span>给百度蜘蛛断网才恢复正常,<span style="color: black;">导致</span>暴风雨的爬虫不<span style="color: black;">必定</span>是百度蜘蛛,<span style="color: black;">因为</span>缺乏足够的数据,这次袭击园子的爬虫身份<span style="color: black;">没法</span>确认。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">给百度蜘蛛断网,是为了减少服务器的总负载,在上次故障时<span style="color: black;">咱们</span>只屏蔽了一个网段(255个IP)的百度蜘蛛,还有<span style="color: black;">海量</span>百度蜘蛛<span style="color: black;">每日</span>在园子里爬来爬去,虽然这些蜘蛛被关在笼子里(限制了带宽),但依然会给服务器带来不小的压力,让园子在暴风雨来袭时格外弱不禁风。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">百度蜘蛛专用负载<span style="color: black;">平衡</span> QPS 监控图:</p>
<img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEzTV9sqQhbSAHfC3WaECswJESfojp52lWrW2hXMUwLOa2upKNrj1ia3uQ/640?wx_fmt=png&random=0.4119948762252388&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">非常抱歉!园子这段时间故障有点多。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">曾经的一系列故障公告,是<span style="color: black;">咱们</span>鲁莽走进云计算时代初期的痛苦代价。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">此刻</span>还未成系列的故障公告,<span style="color: black;">亦</span>许是 AI 时代即将到来的被代价。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">不管怎么样,<strong style="color: blue;">不管是代价还是被代价,AI 时代真的要来了</strong>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">【更新】</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 11:40 <span style="color: black;">上下</span>:又<span style="color: black;">显现</span>数据库连接数飙升问题,又是<span style="color: black;">经过</span>给百度蜘蛛断网恢复正常。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEzXibCsWnXP52rrJfCSm8JAXSctU0RC9mdUBYktJiaf3ztFkn2E0rtp3UA/640?wx_fmt=png&random=0.8183582030054093&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 12:10 <span style="color: black;">上下</span>:试着解除百度蜘蛛的断网,放出后 pod CPU 与数据库连接数<span style="color: black;">马上</span>飞快<span style="color: black;">提升</span>,只能继续拉闸。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 12:30 <span style="color: black;">上下</span>:将百度蜘蛛专用负载<span style="color: black;">平衡</span>的带宽限制由130M大幅下调至50M,再次放出百度蜘蛛进行观察。数据库连接数由1700<span style="color: black;">上下</span><span style="color: black;">提升</span>至3000<span style="color: black;">上下</span>,这个连接数在<span style="color: black;">能够</span>承受的范围。12:40 <span style="color: black;">上下</span><span style="color: black;">能够</span><span style="color: black;">起始</span>,数据库连接数稳定在2000<span style="color: black;">上下</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 14:20 <span style="color: black;">上下</span>:数据库连接数拉伸至4000多,将百度蜘蛛专用负载<span style="color: black;">平衡</span>的带宽限制进一步下调至30M,并<span style="color: black;">增多</span>1台服务器,让数据库连接数的拉升变<span style="color: black;">成为了</span>过山车。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEzG3pJHDL8m91QNfEq6Mkn8JgIA1P0byzONt9Ulc8qiah2iakQ0ZGhBk3Q/640?wx_fmt=png&random=0.33857201722896035&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 14:50 <span style="color: black;">上下</span>:数据库连接数飙升至7000多,部分 pod CPU 过载,给百度蜘蛛断网,并屏蔽了来自微软 azure 的一个网段 40.*.*.0/24 ,才<span style="color: black;">掌控</span>住。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEz7RgS87wRYQgu0iaGibGb69Xl9I1ctUwdJYdibjpY6u033KagvkpQCv7Lg/640?wx_fmt=png&random=0.013889374381118591&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 15:05 <span style="color: black;">上下</span>:数据库连接数又飙升至6000多,追加来自微软 azure 的一个网段 157.*.0.0/16,才再次<span style="color: black;">掌控</span>住。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/fCpd1cf8iacYNbbqNMpR9I7yNq747SPEzyKyBzINK0gg7MmY0QkY5uC8bVXbasZVoJuSbbakLzHGO3iaSPpJzVDw/640?wx_fmt=png&random=0.034999175854814046&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 15:17 更新:从<span style="color: black;">日前</span><span style="color: black;">状况</span>看,<span style="color: black;">针对</span>今天下午<span style="color: black;">显现</span>的问题,屏蔽微软 azure 网段效果最<span style="color: black;">显著</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3-30 16:05 更新:<span style="color: black;">经过</span> dns 反向解析确认被屏蔽的 azure 网段是微软 bing 爬虫之一 msnbot 所<span style="color: black;">运用</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">博客园的<span style="color: black;">商场</span>化<span style="color: black;">奋斗</span>开局</span></strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4月2日,博客园官方发布了《园子的<span style="color: black;">商场</span>化<span style="color: black;">奋斗</span>-开篇:绝境求商》一文,<span style="color: black;">咱们</span>看到园子<span style="color: black;">日前</span>正在推进的<span style="color: black;">商场</span>化<span style="color: black;">奋斗</span>,毕竟情怀<span style="color: black;">不可</span>当饭吃。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">下面<span style="color: black;">便是</span>该<span style="color: black;">文案</span>的原文内容:</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2021年的一场<span style="color: black;">危险</span>,给园子来了个做梦<span style="color: black;">亦</span>没想到的<span style="color: black;">忽然</span>袭击,让园子一片狼藉。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2022年的双重困境,让园子在暴风雨之后再添<span style="color: black;">卑劣</span>天气,不给园子一点喘息之机。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2023年困难重重的开局,将园子陷于看不到雨后彩虹的绝地,逼着园子唯有奋起出击。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今年是园子<strong style="color: blue;"><span style="color: black;">商场</span>化<span style="color: black;">奋斗</span>生死攸关的一年</strong>,<span style="color: black;">咱们</span>将在自己认可的<span style="color: black;">商场</span>化方向上奋力探索,全力以赴找到园子的<span style="color: black;">商场</span>化出路,并<strong style="color: blue;">开启园子现代化升级的新<span style="color: black;">周期</span></strong>。</span></p><span style="color: black;">▼</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><a style="color: black;"><strong style="color: blue;">美团叠加红包|点击领取</strong></a></span></p>
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><a style="color: black;"><strong style="color: blue;"><span style="color: black;">饿了么幸运红包|点击领取</span></strong></a></p><span style="color: black;"><strong style="color: blue;">↑↑</strong><span style="color: black;">每日</span>都可领 顿顿都省钱<strong style="color: blue;">↑↑</strong></span><span style="color: black;"><strong style="color: blue;">饿了么<strong style="color: blue;"><span style="color: black;">翻3倍红包</span></strong></strong></span><span style="color: black;"><span style="color: black;"><span style="color: black;">,<strong style="color: blue;"><span style="color: black;">必定</span>要领</strong></span></span></span><img src="https://mmbiz.qpic.cn/mmbiz_jpg/JSuTeGTtib0MwaM6W2TKGgTibfb45RT0mcJE0EZaedN1QwOLlib3cQXbtg356kSY6dgxsxTRLINCGKuSksl1picCmg/640?wx_fmt=jpeg&random=0.8319348652368168&wxfrom=5&wx_lazy=1&wx_co=1&retryload=1&tp=webp" style="width: 50%; margin-bottom: 20px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">保留</span>上方二维码,</span></strong><strong style="color: blue;"><span style="color: black;"><span style="color: black;">而后</span></span></strong><span style="color: black;"><strong style="color: blue;"><span style="color: black;">打开</span></strong></span><span style="color: black;"><strong style="color: blue;"><span style="color: black;">饿了么</span></strong></span><span style="color: black;"><strong style="color: blue;"><span style="color: black;">APP</span></strong></span><span style="color: black;"><strong style="color: blue;"><span style="color: black;">找到“扫一扫”→</span></strong><strong style="color: blue;"><span style="color: black;"><img src="https://mmbiz.qpic.cn/mmbiz_png/slAl1ZnA8MSg48YLpRmn12fbe3N1HunGtOWZMOx49yKLcn1zJMR31IZEiaDTRicdGFoXdQmTZamT9n8HfnZNg3Mw/640?wx_fmt=png&random=0.33086222408274746&wxfrom=5&wx_lazy=1&wx_co=1&tp=webp" style="width: 50%; margin-bottom: 20px;"><span style="color: black;">识别</span></span></strong><strong style="color: blue;"><span style="color: black;"><span style="color: black;">就可</span></span></strong></span>
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