@ AttributeError: 'NoneType'对象没有属性'get_text'，我在平台上尝试过其他一些答案，但没有用

Here is my code:

这是我的代码:

enter code here
import urllib.request
import re
from bs4 import BeautifulSoup

URLdict=dict()
class M1905:
   def __init__(self,baseurl):
       self.baseURL=baseurl
       self.user_agent = 'Chrome/58.0(compatible;MSIE 5.5; Windows 10)'
       self.headers = {'User-Agent': self.user_agent}

   def getPage(self,pageNum):
       url=self.baseURL+'?refresh=1321407488&page='+str(pageNum)
       request=urllib.request.Request(url,headers=self.headers)
       response=urllib.request.urlopen(request)
       first=response.read().decode('utf-8')
       BSobj = BeautifulSoup(first, "html.parser")
      for a in BSobj.findAll("a", href=True):
        if re.findall('/news/', a['href']):
           URLdict[a['href']] = a.get_text()

      for link, title in URLdict.items():
          print(title, ":", link)
          ContentRequest = urllib.request.Request(link, headers=self.headers)
          ContentResponse = urllib.request.urlopen(ContentRequest)
          ContentHTMLText = ContentResponse.read().decode('utf-8')
          ContentBSobj = BeautifulSoup(ContentHTMLText, "html.parser")
          Content = ContentBSobj.find("div", {"class": "mod-content"})
          print(Content.get_text())
       return first
baseURL='https://www.1905.com/list-p-catid-221.html'
m1905=M1905(baseURL)
m1905.getPage(1)
enter code here
im