一、爬取数据步骤

1、

2、实现代码

import requests

from bs4 import BeautifulSoup

class Food(object):

def __init__(self):

self.url = 'http://www.gznw.gov.cn/priceInfo/getPriceInfoByAreaId.jx?areaid=22572&page=1'

self.headers = {

'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36',

}

def get_html(self):

"""

抓取网页

:return:

"""

response = requests.get(url=self.url, headers=self.headers)

if response.status_code == 200:

return response.text

return ''

def down_data(self):

"""

下载数据

:return:

"""

soup = BeautifulSoup(self.get_html, 'lxml')

table = soup.find('table', attrs={'class': 'table table-hover'})

trs = table.find('tbody').find_all('tr')

food_list = []

for tr in trs:

food_dict = {}

tds = tr.find_all('td')

name = tds[0].get_text()

price = tds[1].get_text()

address = tds[3].get_text()

time = tds[4].get_text()

food_dict['name'] = name

food_dict['price'] = price

food_dict['address'] = address

food_dict['time'] = time

food_list.append(food_dict)

return food_list

if __name__ == "__main__":

foo = Food()

print(foo.down_data())