1.从新闻url获取新闻详情： 字典,anews

2.从列表页的url获取新闻url：列表append(字典) alist

3.生成所页列表页的url并获取全部新闻 ：列表extend(列表) allnews

*每个同学爬学号尾数开始的10个列表页

4.设置合理的爬取间隔

import time

import random

time.sleep(random.random()*3)

5.用pandas做简单的数据处理并保存

保存到csv或excel文件 

newsdf.to_csv(r'F:\duym\爬虫\gzccnews.csv')

保存到数据库

import sqlite3

with sqlite3.connect('gzccnewsdb.sqlite') as db:

    newsdf.to_sql('gzccnewsdb',db)

# -*- coding: utf-8 -*-"""Created on Thu Apr 11 12:33:03 2019@author: Administrator"""import requestsfrom bs4 import BeautifulSoupfrom datetime import datetimeimport reimport pandas as pdimport timeimport randomimport sqlite3newsUrl = 'http://news.gzcc.cn/html/2005/xiaoyuanxinwen_0710/4.html'listUrl = 'http://news.gzcc.cn/html/xiaoyuanxinwen/'def click(url):    id = re.findall('(\d{1,5})', url)[-1]    clickUrl = 'http://oa.gzcc.cn/api.php?op=count&id={}&modelid=80'.format(id)    resClick = requests.get(clickUrl)    newsClick = int(resClick.text.split('.html')[-1].lstrip("('").rstrip("');"))    return newsClickdef newsdt(showinfo):    newsDate = showinfo.split()[0].split(':')[1]    newsTime = showinfo.split()[1]    newsDT = newsDate + ' ' + newsTime    dt = datetime.strptime(newsDT, '%Y-%m-%d %H:%M:%S')    return dtdef anews(url)：    newsDetail = {}    res = requests.get(url)    res.encoding = 'utf-8'    soup = BeautifulSoup(res.text, 'html.parser')    newsDetail['newsTitle'] = soup.select('.show-title')[0].text    showinfo = soup.select('.show-info')[0].text    newsDetail['newsDT'] = newsdt(showinfo)    newsDetail['newsClick'] = click(newsUrl)    return newsDetaildef alist(url):    res = requests.get(listUrl)    res.encoding = 'utf-8'    soup = BeautifulSoup(res.text, 'html.parser')    newsList = []    for news in soup.select('li'):        if len(news.select('.news-list-title')) > 0:            newsUrl = news.select('a')[0]['href']            newsDesc = news.select('.news-list-description')[0].text            newsDict = anews(newsUrl)            newsDict['description'] = newsDesc            newsList.append(newsDict)    return newsListalist(listUrl)alist(newsUrl)res = requests.get('http://news.gzcc.cn/html/xiaoyuanxinwen/')res.encoding = 'utf-8'soup = BeautifulSoup(res.text, 'html.parser')for news in soup.select('li'):    if len(news.select('.news-list-title')) > 0:        newsUrl = news.select('a')[0]['href']        print(anews(newsUrl))allnews = []for i in range(57, 67):    listUrl = 'http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html'.format(i)    allnews.extend(alist(listUrl))print("allnewsLength={}".format(len(allnews)))print(allnews)res = requests.get('http://news.gzcc.cn/html/xiaoyuanxinwen/')res.encoding = 'utf-8'soup = BeautifulSoup(res.text, 'html.parser')for news in soup.select('li'):    if len(news.select('.news-list-title')) > 0:        newsUrl = news.select('a')[0]['href']        print(anews(newsUrl))s1 = pd.Series([100, 23, 'bugingcode'])print(s1)pd.Series(anews)newsdf = pd.DataFrame(allnews)for i in range(5):    print(i)    time.sleep(random.random() * 3)    print(newsdf)newsdf.to_csv(r'D:\py_file\gzcc.csv',encoding='utf_8_sig')with sqlite3.connect(r'D:\py_file\gzccnewsdb.sqlite') as db:    newsdf.to_sql('gzccnewsdb',db)