001：from bs4 import BeautifulSoupimport requests
url = 'http://news.sina.com.cn/china/'web_data = requests.get(url)web_data.encoding = 'utf-8'soup = BeautifulSoup(web_data.text,'xml')
for news in soup.select('.news-item'):if(len(news.select('h2')) > 0):h2 = news.select('h2')[0].texttime = news.select('.time')[0].texta = news.select('a')[0]['href'].textprint(h2)print(time)print(a)002：#!/usr/bin/env python # -*- coding:utf-8 -*-
import urllib3import sysimport chardet
req = urllib3.Request("http://www.163.com/")content = urllib3.urlopen(req).read()typeEncode = sys.getfilesystemencoding()infoencode = chardet.detect(content).get('encoding','utf-8')html = content.decode(infoencode,'ignore').encode(typeEncode)print (html)
# import urllib.request## # 向指定的url发送请求，并返回服务器响应的类文件对象，urlopen中有data参数为POST请求，无data参数为GET请求# response = urllib.request.urlopen("https://www.baidu.com/")## # 类文件对象支持 文件对象的操作方法，如read()方法读取文件全部内容，返回字符串# html = response.read()## # 打印字符串# print# html
# import urllib.request# resp=urllib.request.urlopen('http://www.baidu.com')# html=resp.read()# print(html)003：# #!/usr/bin/python2.6# import requests## from requests import HTMLSession## session = HTMLSession()## r = session.get("https://news.cnblogs.com/n/recommend")## # 通过CSS找到新闻标签# news = r.html.find('h2.news_entry > a')## for new in news:# print(new.text) # 获得新闻标题# print(new.absolute_links) # 获得新闻链接
# m = 'AFEFEFEaa'# print (m.lower())# c=m.islower()# print(c)# print (m.upper())## info = 'babca'# print (info.find('a'))## info = 'babca'# print (info.find('a',1))# 1代表查找字符串的起始位置，如果没有则返回-1
# info = {}# info = {'a':'1','b':2,'c':3,'default':'ss'}# c = info.get('default','a')# print (c)
## for i in range(5):# if i==3:# print ('3')# else:# print('000000000')
# def ww():# aa=100-10;# return str(aa)+'kg'## a=ww()# print(a)## def SUM(a,b):# Count=a+b;# return Count;# aaa=SUM(1,input('4546'))# print(aaa)
## def text_create(name,msg):# # 创建文件，写入信息# desktop_path = 'E:\程序\s
转载于:https://www.cnblogs.com/ZkbFighting/p/11072463.html
