本文的爬蟲教程分為四部：
1.從哪爬 where
2.爬什么 what
3.怎么爬 how
4.爬了之后信息如何保存 save
一、從哪爬
二、爬什么
三國演義全文
三、怎么爬
在Chrome頁面打開F12，就可以發現文章內容在節點
<div id="con" class="bookyuanjiao">
只要找到這個節點，然后把內容寫入到一個html文件即可。
content = soup.find("div", {"class": "bookyuanjiao", "id": "con"})四、爬了之后如何保存
主要就是拿到內容，拼接到一個html文件，然后保存下來就可以了。
#!usr/bin/env # -*-coding:utf-8 -*-import urllib2import osfrom bs4 import BeautifulSoup as BSimport localeimport sysfrom lxml import etreeimport rereload(sys)sys.setdefaultencoding('gbk')sub_folder = os.path.join(os.getcwd(), "sanguoyanyi")if not os.path.exists(sub_folder): os.mkdir(sub_folder)path = sub_folder# customize html as head of the articlesinput = open(r'0.html', 'r')head = input.read()domain = 'http://www.shicimingju.com/book/sanguoyanyi.html't = domain.find(r'.html')new_domain = '/'.join(domain.split("/")[:-2])first_chapter_url = domain[:t] + "/" + str(1) + '.html'print first_chapter_url# Get url if chapter listsreq = urllib2.Request(url=domain)resp = urllib2.urlopen(req)html = resp.read()soup = BS(html, 'lxml')chapter_list = soup.find("div", {"class": "bookyuanjiao", "id": "mulu"})sel = etree.HTML(str(chapter_list))result = sel.xpath('//li/a/@href')for each_link in result: each_chapter_link = new_domain + "/" + each_link print each_chapter_link req = urllib2.Request(url=each_chapter_link) resp = urllib2.urlopen(req) html = resp.read() soup = BS(html, 'lxml') content = soup.find("div", {"class": "bookyuanjiao", "id": "con"}) title = soup.title.text title = title.split(u'_《三國演義》_詩詞名句網')[0] html = str(content) html = head + html + "</body></html>" filename = path + "http://" + title + ".html" print filename # write file output = open(filename, 'w') output.write(html) output.close()0.html的內容如下
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body>
總結
以上就是利用Python爬取三國演義的實現方法，希望對大家學習python能有所幫助，如果有疑問大家可以留言交流。
新聞熱點
疑難解答
圖片精選
