本代码主要实现抓取大众点评网中关村附近的餐馆有哪些，具体如下：
import urllib.request
import re
def fetchFood(url):
# 模拟使用浏览器浏览大众点评的方式浏览大众点评
headers = {'User-Agent',
'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36'}
opener = urllib.request.build_opener()
opener.addheaders = [headers]
data = opener.open(url).read()
data = data.decode('utf')
print('================================抓取的页面数据=======================================')
print(data) # 打印抓取的页面
print('================================获取的餐馆信息====================================')
foodNameSet = set(re.compile(r'<img title="(.*?)"', re.DOTALL).findall(data))
number = 0
for i in foodNameSet:
number = number + 1
print("第%d个餐馆： %s" % (number, i))
foodUrl = "http://www.dianping.com/search/category/2/10/r1488"
fetchFood(foodUrl)
输出结果：
"D:\ProgramFiles\python\python.exe"D:/zhangzh/program/MyGitHub/python3-webapp-demo/www/dzdp.py
================================抓取的页面数据=======================================
<!DOCTYPEhtml>
<html>
<head>
<metacharset="UTF-8"/>
<metahttp-equiv="X-UA-Compatible"content="IE=edge"/>
<script>(function(n){vare;e="//catdot.dianping.com/broker-service/api/js",n.onerror=function(n,o,r){vari=encodeURIComponent,t=+newDate();(newImage).src=e+"?error="+i(n)+"&file="+i(o)+"&line="+i(r)+"×tamp="+t}})(window);</script>
<title>北京中关村美食-大众点评网</title>
......此处省略
<liclass="">
<divclass="pic">
<atarget="_blank"href="/shop/33562041" rel="external nofollow" rel="external nofollow" rel="external nofollow" title="">
<imgtitle="渝是乎(中关村店)"alt="渝是乎(中关村店)"data-src="https://cdn.zhanzhang360.cn/imgupload/008932/023ff4be1a239be5b7f13ac328bc6c5d%40249w_249h_0e_1l%7Cwatermark%3D1%26%26r%3D1%26p%3D9%26x%3D2%26y%3D2%26relative%3D1%26o%3D20"/>
</a>
</div>
<divclass="txt">
<divclass="tit">
<aonclick="document.hippo.ext({cl_i:10,query_id:'4ab097b5-d3b6-441b-a684-8b58c0704567'}).mv('cl_to_s',33562041);
"data-hippo-type="shop"title="渝是乎(中关村店)"target="_blank"href="/shop/33562041" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<h4>渝是乎(中关村店)</h4>
</a>
<divclass="promo-icon">
<atarget="_blank"href="/shop/33562041#waimai" rel="external nofollow"
class="iout"title="本店支持在线下单，足不出户，外送到家！"></a>
</div>
<atarget="_blank"href="/search/branch/2/0_33562041/g0" rel="external nofollow"
module="list-branch"
class="shop-branch">分店</a>
</div>
<divclass="comment">
<spanclass="sml-rank-starssml-str50"title="五星商户"></span>
<ahref="/shop/33562041#comment" rel="external nofollow" class="review-num"target="_blank"module="list-readreview"
>
<b>1536</b>
条点评</a>
<emclass="sep">|</em>
<ahref="/shop/33562041" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="mean-price"target="_blank">
人均
<b>￥42</b>
</span>
</a>
</div>
<divclass="tag-addr">
<ahref="/search/category/2/10/g102" rel="external nofollow" ><spanclass="tag">川菜</span></a>
<emclass="sep">|</em>
<ahref="/search/category/2/0/r1488" rel="external nofollow" ><spanclass="tag">中关村</span></a>
<spanclass="addr">榆树林1号</span>
</div>
<spanclass="comment-list">
<span>口味<b>9.1</b></span>
<span>环境<b>8.7</b></span>
<span>服务<b>8.3</b></span>
</span>
</div>
<divclass="svr-info">
......此处省略
</script>
</body></html>
================================获取的餐馆信息====================================
第1个餐馆：重八牛府(之初入江湖店)
第2个餐馆：纽约客美式餐厅(新中关店)
第3个餐馆：Chatuchak加都加曼谷潮流甜品
第4个餐馆：新净雅烹小鲜
第5个餐馆：那家小馆(中关村店)
第6个餐馆：谷得一
第7个餐馆：唐廊.朴禅(当代商城店)
第8个餐馆：小福楼餐厅
第9个餐馆：食宝街
第10个餐馆：渝是乎(中关村店)
第11个餐馆：品咖啡
第12个餐馆：小吊梨汤(融科店)
第13个餐馆：鱼八斗老麻水煮鱼（酸菜鱼）
第14个餐馆：鳗鳗的爱(新中关购物中心店)
第15个餐馆：速度牛排
Processfinishedwithexitcode0
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