python爬虫之爬取文本内容（2）

一、基本案例

cpp 复制代码

#注意：需要将requests包换成2.27.1
#中文编码gbk也可能是utf-8
import requests
#from bs4 import BeautifulSoup

if __name__ == '__main__':
    url = 'https://www.biqg.cc/book/6909/1.html'#目标访问网站url
    #伪装头信息的引入
    header = {"User-Agent":
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0"}
    req = requests.get(url=url,headers = header) #返回爬取网站信息
    req.encoding = 'utf-8'  #查看head中charset可以查找到编码信息
    html = req.text #转化为文本
    print(html)

二、升级案例

cpp 复制代码

# import bs4 from BeautifulSoup
# #html接上文中的已爬取得到的全部信息
#  bes= BeautifulSoup(html,"lxml")#通过lxml方式解析获取网页中文本信息
#  text = bes.find("div", id = "content"[,class_ = "<class的名称>"]) #解析text中，提取标签为"div"内id = "content"全部信息，也可解析提取class = <某名称>的内容信息


import requests
from bs4 import BeautifulSoup

if __name__ == '__main__':
    url = 'https://www.biqg.cc/book/6909/1.html'#目标访问网站url
    header = {"User-Agent":
                  "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0"}
    req = requests.get(url=url,headers = header)
    req.encoding = 'utf-8'
    html = req.text
    bes = BeautifulSoup(html,"lxml")
    texts = bes.find("div", class_="content")
    print(texts)

三、最终案例

cpp 复制代码

import requests
from bs4 import BeautifulSoup

if __name__ == '__main__':
    url = 'https://www.biqg.cc/book/6909/1.html'#目标访问网站url
    header = {"User-Agent":
                  "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0"}
    req = requests.get(url=url,headers = header)
    req.encoding = 'utf-8'
    html = req.text
    bes = BeautifulSoup(html,"lxml")
    texts = bes.find("div", class_ = "Readarea ReadAjax_content")
    # print(texts)
    texts_list = texts.text.split("\xa0" * 4) #texts.text.split("\xa0" * 4)会将texts.text按照\xa0\xa0\xa0\xa0进行分割，得到一个字符串列表，存储在texts_list中。
    texts_list = texts.text.split("\u3000" * 2)
    # print(texts_list)

    with open("D:/novel.txt","w") as file:    ##打开读写文件，逐行将列表读入文件内
        for line in texts_list:
            file.write(line+"\n")