python基础学习

其实这个才是python的第一天，

import urllib.request
import re
import random

url=r"https://fanyi.youdao.com/"
ug1="Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1 Edg/101.0.4951.54"
ug2="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36 Edg/101.0.1210.39"
ulist=[ug1,ug2]
ug = random.choice(ulist)
header={"User-Agent":ug}
# 返回请求对象
urr = urllib.request.Request(url,headers=header)
# 创建了自定义的opener
httpheader = urllib.request.HTTPHandler()
opener = urllib.request.build_opener(httpheader)
response = opener.open(urr).read().decode()#
# 定义opener为全局
urllib.request.install_opener(opener)
response = urllib.request.urlopen(urr).read().decode()

# response= urllib.request.urlopen(urr).read().decode()
# print(response)
str=r"<title>(.*?)</title>"
str1 = re.findall(str,response)
print(str1)