标签:states effect min parse ret sele ted lse imp
1. 用正则表达式判定邮箱是否输入正确。
# 验证邮箱 import re r = r‘[a-zA-Z0-9]+(\.[a-zA-Z0-9_-]+){6,12}@[a-zA-Z0-9]+(\.[a-zA-Z0-9]+){0,4}$‘ e = (‘123456789@qq.com‘) if re.match(r, e): print(re.match(r, e).group(0)); else: print(‘error‘)
2. 用正则表达式识别出全部电话号码。
# 识别电话号码 str = ‘‘‘版权所有:广州商学院 地址:广州市黄埔区九龙大道206号 学校办公室:020-82876130 招生电话:020-82872773 粤公网安备 44011602000060号 粤ICP备15103669号‘‘‘ telePhones = re.findall(‘(\d{3,4})-(\d{6,8})‘, str) print(telePhones)
3. 用正则表达式进行英文分词。re.split(‘‘,news)
import re news=‘‘‘Earthquake early warning detection is more effective for minor quakes than major ones. This is according to a new study from the United States Geological Survey. Seismologists modelled ground shaking along California‘s San Andreas Fault, where an earthquake of magnitude 6.5 or more is expected within 30 years. They found that warning time could be increased for residents if they were willing to tolerate a number of "false alarms" for smaller events.‘‘‘ new = re.split("[\s+\n\.\,\‘]", news) print(new)
4. 使用正则表达式取得新闻编号
import re url=‘http://news.gzcc.cn/html/2018/xiaoyuanxinwen_0404/9183.html‘ n=re.match(‘http://news.gzcc.cn/html/2018/xiaoyuanxinwen_0404/(.*).html‘,url).group(1) print(n)
5. 生成点击次数的Request URL
6. 获取点击次数
7. 将456步骤定义成一个函数 def getClickCount(newsUrl):
8. 将获取新闻详情的代码定义成一个函数 def getNewDetail(newsUrl):
import requests from bs4 import BeautifulSoup from datetime import datetime url = "http://news.gzcc.cn/html/xiaoyuanxinwen/" res = requests.get(url) res.encoding = ‘utf-8‘ soup = BeautifulSoup(res.text, ‘html.parser‘) def getClickCount(newsUrl): clickUrl = ‘http://oa.gzcc.cn/api.php?op=count&id=9172&modelid=80‘ rest = requests.get(clickUrl).text.split(‘.html‘)[-1].lstrip("(‘").rstrip("‘);") print("新闻点击次数URL:", clickUrl) print("新闻点击次数:", rest) def getNewDetail(Url): for news in soup.select(‘li‘): if len(news.select(‘.news-list-title‘))>0: t1=news.select(‘.news-list-title‘)[0].text d1=news.select(‘.news-list-description‘)[0].text a1=news.select(‘a‘)[0].attrs[‘href‘] res = requests.get(a1) res.encoding = ‘utf-8‘ soupd = BeautifulSoup(res.text, ‘html.parser‘) c1=soupd.select(‘#content‘)[0].text info=soupd.select(‘.show-info‘)[0].text print("新闻标题:", t1) print("新闻链接:", a1) print("新闻详情:", c1) resd = requests.get(a1) resd.encoding = ‘utf-8‘ soupd = BeautifulSoup(resd.text, ‘html.parser‘) time = soupd.select(‘.show-info‘)[0].text[0:24].lstrip(‘发布时间:‘) dt = datetime.strptime(time, ‘%Y-%m-%d %H:%M:%S‘) print("新闻发布时间:", dt) author=info[info.find(‘作者‘):].split()[0].lstrip(‘作者:‘) fromwhere = info[info.find(‘来源‘):].split()[0].lstrip(‘来源:‘) photo = info[info.find(‘摄影‘):].split()[0].lstrip(‘摄影:‘) print("新闻作者:", author) print("新闻来源:", fromwhere) print("新闻摄影:", photo) getClickCount(a1) def getPage(url): return int(soup.select(‘.a1‘)[0].text.rstrip(‘条‘))//10+1 def getlist(url): for i in soup.select(‘li‘): if len(i.select(‘.news-list-title‘)) > 0: place = i.select(‘.news-list-info‘)[0].contents[1].text # 获取来源 title = i.select(‘.news-list-title‘)[0].text # 获取标题 description = i.select(‘.news-list-description‘)[0].text # 获取描述 detailurl = i.select(‘a‘)[0].attrs[‘href‘] # 获取链接 print("来源:" + place) print("新闻标题:" + title) print("新闻描述:" + description) print("新闻链接:" + detailurl) def getall(url): for num in range(2,getPage(url)): listpageurl="http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html".format(num) getlist(listpageurl) getNewDetail(listpageurl) getall(url)
标签:states effect min parse ret sele ted lse imp
原文地址:https://www.cnblogs.com/cs007/p/8794596.html