湖北网站开发,启东做网站的网络公司有哪些,免费网站怎么注册,wordpress是主机吗BeautifulSoup简介 BeautifulSoup库是一个强大的python第三方库#xff0c;它可以解析html进行解析#xff0c;并提取信息。 安装BeautifulSoup 打开终端#xff0c;输入命令#xff1a;pip3 install beautifulsoup4 BeautifulSoup库小测 小测用到的html页面地址#xff1…BeautifulSoup简介 BeautifulSoup库是一个强大的python第三方库它可以解析html进行解析并提取信息。 安装BeautifulSoup 打开终端输入命令pip3 install beautifulsoup4 BeautifulSoup库小测 小测用到的html页面地址http://python123.io/ws/demo.html 查看它的源代码 用request库获得源代码(存放在变量demo中) import requestsr requests.get(http://python123.io/ws/demo.html)r.text
htmlheadtitleThis is a python demo page/title/head\r\nbody\r\np classtitlebThe demo python introduces several python courses./b/p\r\np classcoursePython is a wonderful general-purpose programming language. You can learn Python from novice to professional by tracking the following courses:\r\na hrefhttp://www.icourse163.org/course/BIT-268001 classpy1 idlink1Basic Python/a and a hrefhttp://www.icourse163.org/course/BIT-1001870001 classpy2 idlink2Advanced Python/a./p\r\n/body/htmldemo r.text 导入BeautifulSoup库 from bs4 import BeautifulSoup使用BeautifulSoup库解析html信息 demo r.textsoup BeautifulSoup(demo,html.parser)print(soup.prettify)
bound method Tag.prettify of htmlheadtitleThis is a python demo page/title/head
body
p classtitlebThe demo python introduces several python courses./b/p
p classcoursePython is a wonderful general-purpose programming language. You can learn Python from novice to professional by tracking the following courses:
a classpy1 hrefhttp://www.icourse163.org/course/BIT-268001 idlink1Basic Python/a and a classpy2 hrefhttp://www.icourse163.org/course/BIT-1001870001 idlink2Advanced Python/a./p
/body/html如何使用BeautifulSoup库 代码框架from bs4 import BeautifulSoup
soup BeautifulSoup(pdata/p,html.parser) 其中BeautifulSoup的两个参数 第一个代表我们要解析的html格式的信息。第二个代表解析所使用到的解析器转载于:https://www.cnblogs.com/031602523liu/p/9824907.html
