爬取zol索尼相機排行榜

import requests

import re
import json
from bs4 import beautifulsoup
defget_one_page
(url)
: user_agent =
headers =
response = requests.get(url,headers)
return response.text

def

get_information
(html_text)
: pattern = re.
compile
('shtml">(.)
.*?"rank__price">(.)
.*?(.*?)'
, re.s)
items = re.findall(pattern,html_text)
for item in items:
yield

yield整合起資料結構

finaall返回匹配到的列表，裡面為元組

def

recording
(information)
:with
open
('豆瓣top250.txt'
,'a'
,encoding=
'utf-8'
)as f:
f.write(json.dumps(information,ensure_ascii=
false)+
'\n'
)

def

main()
:for i in
range(0
,1):
response = get_one_page(
'') html_text = get_information(response)
for m in html_text:
recording(m)
print
('正在爬取第'
+str
(i)+
'頁')
print
('爬取完畢！'
)main(
)

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