import requests,lxml
from bs4 import BeautifulSoup
url='https://www.cnblogs.com/wjlv/default.html?page=2'  # 打开网页
html_index = requests.get(url).text  # 获取请求内容
soap = BeautifulSoup(html_index,"lxml")
a_list = soap.find_all('a',{"class":"postTitle2"})  # 得到所有随笔标题和地址标签
for h in a_list:
    soap = BeautifulSoup(str(h),'lxml')
    # print('{}:{}'.format(soap.find('a').text,soap.find('a')['href']))  # 得到单个随笔的地址
    article = requests.get(soap.find('a')['href']).text  # 得到单个随笔的内容
    soap_a = BeautifulSoup(article,'lxml')
    p_lab = soap_a.find_all('p')  # 获取单个随笔内容标签
    for txt in p_lab:
        soap_t = BeautifulSoup(str(txt),'lxml')
        print(soap_t.find('p').text)  # 得到所有标签的具体内容