用Python爬虫 爬博客访问量

import re
import requests
from requests import RequestException
import time
import random


def get_page(url):
    try:
        headers = {
            'Referer': 'https://blog.csdn.net',  # 伪装成从CSDN博客搜索到的文章
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36'
            # 伪装成浏览器
        }
        response = requests.get(url, headers=headers)
        if response.status_code == 200:
            return response.text
        return None
    except RequestException:
        print('请求出错')
        return None


def parse_page(html):
    try:
        read_num = int(re.compile('<span.*?read-count.*?(\d+).*?</span>').search(html).group(1))
        return read_num
    except Exception:
        print('解析出错')
        return None


def main():
    try:
        while 1:
            url = 'https://blog.csdn.net/DragonGirI/article/details/83062756'  # 待刷浏览量博客的url
            html = get_page(url)
            if html:
                read_num = parse_page(html)
                if read_num:
                    print('当前阅读量：', read_num)
            url = 'https://blog.csdn.net/DragonGirI/article/details/88093296'  
            html = get_page(url)
            if html:
                read_num = parse_page(html)
                if read_num:
                    print('当前阅读量：', read_num)
            url = 'https://blog.csdn.net/DragonGirI/article/details/89891426'  
            html = get_page(url)
            if html:
                read_num = parse_page(html)
                if read_num:
                    print('当前阅读量：', read_num)
            url = 'https://blog.csdn.net/DragonGirI/article/details/88914482'  
            html = get_page(url)
            if html:
                read_num = parse_page(html)
                if read_num:
                    print('当前阅读量：', read_num)
            sleep_time = random.randint(60, 83)
            print('please wait', sleep_time, 's')
            time.sleep(sleep_time)  # 设置访问频率，过于频繁的访问会触发反爬虫
    except Exception:
        print('出错啦！')


if __name__ == '__main__':
    main()