爬虫15-正则表达式爬取中国诗词网

import requests
import re
from  lxml import  etree
headers={
"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"
}
def parse_page(url):
    response=requests.get(url,headers=headers)
    text=response.text
    # 使用xpath找的标题
    # html=etree.HTML(text)
    # titles=html.xpath("//div[@class='cont']//b/text()")

    titles =re.findall(r'<divsclass="cont">.*?<b>(.*?)</b>',text,re.DOTALL)#re.DOTALL代表.匹配所有字符
    dynasties=re.findall(r'<psclass="source">.*?<a.*?>(.*?)</a>',text,re.DOTALL)
    #author=re.findall(r'<psclass="source">.*?<a.*>(.*?)</a>',text)#偶然发现很神奇
    authors=re.findall(r'<psclass="source">.*?<a.*?>.*?<a.*?>(.*?)</a>',text,re.DOTALL)
    content_tags=re.findall(r'<divsclass="contson".*?>(.*?)</div>',text,re.DOTALL)
    contents=[]
    for content in content_tags:
        x=re.sub(r'<.*?>',"",content)
        contents.append(x.strip())
    poems=[]
    for value in zip(titles,dynasties,authors,contents):
        title,dynasty,author,content=value
        poem={
            'title':title,
            'dynasty':dynasty,
            'author':author,
            'content':content
        }
        poems.append(poem)
    for poem in poems:
        print(poem)
def main():
    for x in range(1,11):
        url="https://www.gushiwen.org/default_%s.aspx" % x
        parse_page(url)

if __name__ == '__main__':
    main()