spacy库的安装与使用_BeautifulSoup库的安装与使用

BeautifulSoup库的安装

Win平台：“以管理员身份运行” cmd

执行 pip install beautifulsoup4

文件名称：demo.html

网页源代码：HTML 5.0 格式代码

BeautifulSoup库的安装小测：

>>> importrequests>>> r = requests.get("http://python123.io/ws//demo.html")>>>r.text'

This is a python demo page\r\n\r\n

The demo python introduces several python courses.

\r\n

Python is a wonderful general-purpose programming language. You can learn Python from novice to professional by tracking the following courses:\r\nBasic Python and Advanced Python.

\r\n'

>>> demo =r.text>>> from bs4 importBeautifulSoup>>> soup = BeautifulSoup(demo,'html.parser')>>> print(soup.prettify())

Thisisa python demo page

The demo python introduces several python courses.

Pythonis a wonderful general-purpose programming language. You can learn Python fromnovice to professional by tracking the following courses:Basic Python

and

Advanced Python.

>>>

Beautiful Soup库的基本元素：

​ Beautiful Soup库的理解：