库文件 re
符号
- . : 匹配任意字符，换行符\n除外
-
- ? ：匹配前一个字符0次或1次
- .*：贪心算法
- .*?：非贪心算法
- （）：括号内的数据作为结果返回
方法
- findall： 匹配所有符合规律的内容，返回包含结果的列表
- Search：匹配并提取第一个符合规律的内容，返回一个正则表达式对象（object)
- Sub：替换符合规律的内容，返回替换后的值
- Search在找到要找的信息后就不会再向下找
知识点讲解
import re
from re import findall, search, S
***************************************
a = 'xy123'
b = re.findall('x...', a)
print b
***************************************
a = 'xyxy123'
b = re.findall('x*',a)
print b
***************************************
a = 'xy123'
b = re.findall('x?', a)
print b
'''上面的内容全部都是只需要了解即可，需要掌握的只有下面这一种组合方式(.*?)'''
secret_code = 'hadkfalifexxIxxfasdjifja134xxlovexx23345sdfxxyouxx8dfse'
***************************************
b = re.findall('xx.*xx', secret_code)
print b
***************************************
c = re.findall('xx.*?xx', secret_code)
print c
***************************************
d = re.findall('xx(.*?)xx', secret_code)
print d
for each in d:
print each
***************************************
s = '''sdfxxhello xxfsdfxxworldxxasdf'''
d = re.findall('xx(.*?)xx', s)
print d
d = re.findall('xx(.*?)xx', s, re.S)
print d
***************************************
s2 = 'asdfxxIxx123xxlovexxdfd'
f = re.search('xx(.*?)xx123xx(.*?)xx', s2).group(2)
print f
f2 = re.findall('xx(.*?)xx123xx(.*?)xx', s2)
print f2[0][1]
***************************************
s = '123rrrrr123'
output = re.sub('123(.*?)123', '123%d123' % 789, s)
print output
***************************************
pattern = 'xx(.*?)xx'
new_pattern = re.compile(pattern, re.S)
output = re.findall(new_pattern, secret_code)
print output
***************************************
a = 'asdfasf1234567fasd555fas'
b = re.findall('(\d+)', a)
print b
测试用例
爬取简单文本
<html>
<head>
<title>极客学院爬虫测试</title>
</head>
<body>
<div class="topic"><a href="http://jikexueyuan.com/welcome.html">欢迎参加《Python定向爬虫入门课程》</a>
<div class="list">
<ul>
<li><a href="http://jikexueyuan.com/1.html">这是第一条</a></li>
<li><a href="http://jikexueyuan.com/2.html">这是第二条</a></li>
<li><a href="http://jikexueyuan.com/3.html">这是第三条</a></li>
</ul>
</div>
</div>
</body>
</html>
import re
old_url =
total_page = 20
f = open(
html = f.read()
f.close()
****************************************************
# 爬取标题
title = re.search(
print title # 极客学院爬虫测试
****************************************************
# 爬取链接
links = re.findall(
for each in links:
print each
****************************************************
# 抓取部分文字,先大再小
text_fied = re.findall(
the_text = re.findall(
for every_text in the_text:
every_text.encoding =
print every_text
****************************************************
# sub实现翻页
for i in range(2, total_page + 1):
new_link = re.sub(
print new_link
爬取图片
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src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="445" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/445.html" target="_blank">微信智能客服机器人开发 Java 版</a></h2><p>微信智能客服机器人，是基于微信公众平台开发而成，它能有效的解决人工客服效率低下的问题，做到...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>4课时 30分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/java/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/7630/54578dd427722.png" alt="Java" title="Java" /></a></div></div></div></div></li><li deg="" courseid="492"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/492.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201501/19/d09c/54bc618f6a998.jpg" 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/></a></div></div></div></div></li><li deg="" courseid="595"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/595.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/10/12ed/54fe4789d0049.jpg" class="lessonimg" title="苹果2015新产品发布会介绍" alt="苹果2015新产品发布会介绍" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="595" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/595.html" target="_blank">苹果2015新产品发布会介绍</a></h2><p>本课根据苹果2015年3月10日的产品发布会总结而出，内容包括 AppleTV 介绍、iP...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>4课时 17分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/ios/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/04/3567/5457df3530e14.png" alt="iOS" title="iOS" /></a></div></div></div></div></li><li deg="" courseid="355"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/355.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201411/07/3c09/545c9f410d699.jpg" class="lessonimg" title="Android Wear 项目开发实战:图灵机器人" alt="Android Wear 项目开发实战:图灵机器人" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="355" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/355.html" target="_blank">Android Wear 项目开发实战:图灵机器人</a></h2><p>本课程从零开始手把手教大家如何使用图灵 API实现一个完整的 Android Wear版图...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>8课时 55分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/android/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/00a1/54578d8e652c3.png" alt="Android" title="Android" /></a><a href="http://www.jikexueyuan.com/course/iot/"><img width="16" src="http://a1.jikexueyuan.com/home/201502/26/82ff/54eeb7d945b56.png" alt="物联网操作系统" title="物联网操作系统" /></a></div></div></div></div></li><li deg="" courseid="158"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/158.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201407/27/d212/53d511c267726.jpg" class="lessonimg" title="HTML5版围住神经猫游戏开发项目实战教程" alt="HTML5版围住神经猫游戏开发项目实战教程" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="158" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/158.html" target="_blank">HTML5版围住神经猫游戏开发项目实战教程</a></h2><p>本课讲解CreateJS的应用以及神经猫游戏UI设计与事件处理和游戏算法。</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>6课时 70分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/html5/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/171a/54578ddd8e62a.png" alt="HTML5" title="HTML5" /></a></div></div></div></div></li><li deg="" courseid="364"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/364.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201411/14/9418/546570c084e0f.jpg" class="lessonimg" title="使用Visual Studio 2015开发Android应用" alt="使用Visual Studio 2015开发Android应用" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="364" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/364.html" target="_blank">使用Visual Studio 2015开发Android应用</a></h2><p>本课讲解2014年微软 Connect(); 在线开发者大会上发布的新功能，.Net 开源...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>4课时 14分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/cool/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/27/e06f/5476eee9d3d63.png" alt="新酷技术" title="新酷技术" /></a><a href="http://www.jikexueyuan.com/course/android/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/00a1/54578d8e652c3.png" alt="Android" title="Android" /></a><a href="http://www.jikexueyuan.com/course/html5/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/171a/54578ddd8e62a.png" alt="HTML5" title="HTML5" /></a></div></div></div></div></li></ul></div></div><div id="hot-lessonbox" class="mar-t20 w-1000"><div class="one-classfiy-lesson lesson-list" style="display:none;"><ul class="cf"><li deg="" courseid="646"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/646.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/27/89d2/5514b5ef7cc17.jpg" class="lessonimg" title="科大讯飞 Android 平台新能力介绍" alt="科大讯飞 Android 平台新能力介绍" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="646" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/646.html" target="_blank">科大讯飞 Android 平台新能力介绍</a></h2><p>本课程主要介绍科大讯飞 Android 平台新能力介绍，包括语音唤醒、声纹识别、人脸识别等...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>3课时 21分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/android/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/03/00a1/54578d8e652c3.png" alt="Android" title="Android" /></a></div></div></div></div></li><li deg="" courseid="638"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/638.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/27/44cd/5514fe0d1128e.jpg" class="lessonimg" title="友盟社会化组件 Social-iOS SDK" alt="友盟社会化组件 Social-iOS SDK" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="638" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/638.html" target="_blank">友盟社会化组件 Social-iOS SDK</a></h2><p>本课程讲解友盟社会化组件的基本功能和第三方平台注册事项，并且通过代码直接演示 Social...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>3课时 20分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/ios/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/04/3567/5457df3530e14.png" alt="iOS" title="iOS" /></a></div></div></div></div></li><li deg="" courseid="621"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/621.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/17/e08b/55078ca68af57.jpg" class="lessonimg" title="OneAPM 之应用性能分析工具" alt="OneAPM 之应用性能分析工具" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="621" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/621.html" target="_blank">OneAPM 之应用性能分析工具</a></h2><p>本课学习如何集成和使用 OneAPM SDK，通过 OneAPM SDK 收集应用性能
...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>4课时 34分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/csharp/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/12/e08c/546251c929174.png" alt="C#" title="C#" /></a></div></div></div></div></li><li deg="" courseid="598"><div class="lessonimg-box"><i class="free-icon"></i><a href="http://www.jikexueyuan.com/course/598.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/11/6bed/54ffe9a2aee7c.jpg" class="lessonimg" title="CloudStack 基础安装与配置" alt="CloudStack 基础安装与配置" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="598" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/598.html" target="_blank">CloudStack 基础安装与配置</a></h2><p>本课程介绍 CloudStack 最小化系统的搭建，相关准备工作，包括管理节点，存储节点，...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>7课时 67分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/cool/"><img width="16" src="http://a1.jikexueyuan.com/home/201411/27/e06f/5476eee9d3d63.png" alt="新酷技术" title="新酷技术" /></a></div></div></div></div></li><li deg="" courseid="589"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/589.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/06/3f58/54f9531aea046.jpg" class="lessonimg" title="Bootstrap 组件（下）- Bootstrap 中文网合作课程" alt="Bootstrap 组件（下）- Bootstrap 中文网合作课程" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="589" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/589.html" target="_blank">Bootstrap 组件（下）- Bootstrap 中文网合作课程</a></h2><p>本套课程主要了解 Bootstrap 组件，使用组件可以更加快速的完成页面效果，例如警告框...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>11课时 71分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/bootstrap/"><img width="16" src="http://a1.jikexueyuan.com/home/201502/26/c2a9/54eeb7cba8791.png" alt="Bootstrap" title="Bootstrap" /></a></div></div></div></div></li><li deg="" courseid="588"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/588.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/06/cd0b/54f95295582a5.jpg" class="lessonimg" title="Bootstrap 组件（上）- Bootstrap 中文网合作课程" alt="Bootstrap 组件（上）- Bootstrap 中文网合作课程" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="588" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/588.html" target="_blank">Bootstrap 组件（上）- Bootstrap 中文网合作课程</a></h2><p>本套课程主要了解 Bootstrap 组件，使用组件可以更加快速的完成页面效果，例如警告框...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>11课时 83分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/bootstrap/"><img width="16" src="http://a1.jikexueyuan.com/home/201502/26/c2a9/54eeb7cba8791.png" alt="Bootstrap" title="Bootstrap" /></a></div></div></div></div></li><li deg="" courseid="587"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/587.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/06/7a3f/54f9524f05422.jpg" class="lessonimg" title="Bootstrap 全局 CSS 样式 - Bootstrap 中文网合作课程" alt="Bootstrap 全局 CSS 样式 - Bootstrap 中文网合作课程" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="587" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/587.html" target="_blank">Bootstrap 全局 CSS 样式 - Bootstrap 中文网合作课程</a></h2><p>本套课程主要了解 Bootstrap 的全局 CSS 样式， 包含栅格系统，排版，代码，表...</p><div class="timeandicon"><div class="cf"><dl><dd class="mar-b8"><i class="time-icon"></i><em>10课时 109分钟</em></dd><dd class="zhongji"><i class="xinhao-icon"></i><em>初级</em></dd></dl></div><div class="cf"><div class="lessonicon-box"><a href="http://www.jikexueyuan.com/course/bootstrap/"><img width="16" src="http://a1.jikexueyuan.com/home/201502/26/c2a9/54eeb7cba8791.png" alt="Bootstrap" title="Bootstrap" /></a></div></div></div></div></li><li deg="" courseid="586"><div class="lessonimg-box"><a href="http://www.jikexueyuan.com/course/586.html" target="_blank" ><img src="http://a1.jikexueyuan.com/home/201503/06/62bc/54f951ab8aec6.jpg" class="lessonimg" title="Bootstrap 起步 - Bootstrap 中文网合作课程" alt="Bootstrap 起步 - Bootstrap 中文网合作课程" /><div class="lessonplay"><i class="playericon"></i></div></a><img class="cancel-favorites cancel-stop user-action" src="http://s1.jikexueyuan.com/current/static/images/close_vip.png" mid="1" oid="586" s="1" clsy="" clsn="" oper="favorites" id="do_favorit" style="display:none;" /></div><div class="lesson-infor"><h2 class="lesson-info-h2"><a href="http://www.jikexueyuan.com/course/586.html" target="_blank">Bootstrap 起步 - Bootstrap 中文网合作课程</a></h2><p>本套课程主要了解 Bootstrap，什么是 Bootstrap 以及基本的入门使用和对浏...</p><div class="timeandicon"><div class="cf"><dl>
import re
import requests
f = open('source.txt','r')
html = f.read()
f.close()
pic_url = re.findall('img src="(.*?)" class="lessonimg"',html,re.S)
i = 0
for each in pic_url:
print 'now downloading:' + each
pic = requests.get(each)
fp = open('pic\\' + str(i) + '.jpg','wb')
fp.write(pic.content)
fp.close()
i += 1
import requests
import re
url = 'https://www.crowdfunder.com/browse/deals&template=false'
html = requests.get(url)
print html.content
data = {
'entities_only': 'true',
'page': '2'
}
html_post = requests.post(url, data=data)
title = re.findall('"card-title">(.*?)</div>', html_post.text, re.S)
for each in title:
print each
爬取网站课程信息 有bug
import requests
import re
import sys
reload(sys)
sys.setdefaultencoding("utf-8")
class spider(object):
def __init__(self):
print u'开始爬取内容。。。'
def getsource(self,url):
html = requests.get(url)
return html.text
def changepage(self,url,total_page):
now_page = int(re.search('pageNum=(\d+)',url,re.S).group(1))
page_group = []
for i in range(now_page,total_page+1):
link = re.sub('pageNum=\d+','pageNum=%s'%i,url,re.S)
page_group.append(link)
return page_group
def geteveryclass(self,source):
everyclass = re.findall('(<li deg="".*?</li>)',source,re.S)
return everyclass
def getinfo(self,eachclass):
info = {}
info['title'] = re.search('target="_blank">(.*?)</a>',eachclass,re.S).group(1)
info['content'] = re.search('</h2><p>(.*?)</p>',eachclass,re.S).group(1)
timeandlevel = re.findall('<em>(.*?)</em>',eachclass,re.S)
info['classtime'] = timeandlevel[0]
info['classlevel'] = timeandlevel[1]
info['learnnum'] = re.search('"learn-number">(.*?)</em>',eachclass,re.S).group(1)
return info
def saveinfo(self,classinfo):
f = open('info.txt','a')
for each in classinfo:
f.writelines('title:' + each['title'] + '\n')
f.writelines('content:' + each['content'] + '\n')
f.writelines('classtime:' + each['classtime'] + '\n')
f.writelines('classlevel:' + each['classlevel'] + '\n')
f.writelines('learnnum:' + each['learnnum'] +'\n\n')
f.close()
if __name__ == '__main__':
classinfo = []
url = 'http://www.jikexueyuan.com/course/?pageNum=1'
jikespider = spider()
all_links = jikespider.changepage(url,20)
for link in all_links:
print u'正在处理页面：' + link
html = jikespider.getsource(link)
everyclass = jikespider.geteveryclass(html)
for each in everyclass:
info = jikespider.getinfo(each)
classinfo.append(info)
jikespider.saveinfo(classinfo)
