27、周末吃什么（每周五自动爬取下厨房本周最受欢迎的菜谱）

在之前吴氏私厨的基础上，每周五自动爬取下厨房本周最受欢迎的菜谱

 1 import requests
 2 import time
 3 import schedule
 4 import smtplib
 5 from email.mime.text import MIMEText
 6 from email.header import Header
 7 from bs4 import BeautifulSoup
 8 
 9 def caipu_fun():
10     res = requests.get('http://www.xiachufang.com/explore/')
11     html = res.text
12     soup = BeautifulSoup(html,'html.parser')
13     item = soup.find('div',class_='info pure-u')
14     caipu = '本周最佳菜谱：' + item.find('a').text.strip() + '
  链接: ' + 'http://www.xiachufang.com'+item.find('a')['href'] + '
  原材料：' + item.find('p',class_='ing ellipsis').text.strip()
15     return caipu
16 
17 def mail_fun(zhuti,caipu):
18     mail_user = 'www1707@xxx.cn'
19     mail_pwd  = 'yyy'
20     receiver  = 'user01@xxx.cn'
21     subject   = zhuti
22     content   = caipu
23 
24     alimail = smtplib.SMTP()
25     alimail.connect('smtp.qiye.aliyun.com',25)
26     alimail.login(mail_user,mail_pwd)
27 
28     message = MIMEText(content,'plain','utf-8')
29     message['Subject'] = Header(subject,'utf-8')
30     message['From']    = Header(mail_user,'utf-8')
31     message['To']      = Header(receiver,'utf-8')
32 
33     alimail.sendmail(mail_user,receiver,message.as_string())
34     alimail.quit()
35 
36 def main_fun():
37     zhuti = time.strftime('%Y{}%W{}').format('年 第','周 最佳菜谱')
38     caipu = caipu_fun()
39     mail_fun(zhuti,caipu)
40     print(zhuti)
41 
42 schedule.every().friday.do(main_fun)
43 
44 while True:
45     schedule.run_pending()
46     time.sleep(1)

老师的答案

 1 import requests
 2 import smtplib
 3 import schedule
 4 import time
 5 from bs4 import BeautifulSoup
 6 from email.mime.text import MIMEText
 7 from email.header import Header
 8 
 9 account = input('请输入你的邮箱：')
10 password = input('请输入你的密码：')
11 receiver = input('请输入收件人的邮箱：')
12 
13 def recipe_spider():
14     res_foods = requests.get('http://www.xiachufang.com/explore/')
15     bs_foods = BeautifulSoup(res_foods.text,'html.parser')
16     list_foods = bs_foods.find_all('div',class_='info pure-u')
17     list_all = ''
18     num=0
19     for food in list_foods:
20         num=num+1
21         tag_a = food.find('a')
22         name = tag_a.text.strip()
23         url = 'http://www.xiachufang.com'+tag_a['href']
24         tag_p = food.find('p',class_='ing ellipsis')
25         ingredients = tag_p.text.strip()
26         food_info = '''
27         序号: %s
28         菜名: %s
29         链接: %s
30         原料: %s
31         '''%(num,name,url,ingredients)
32         list_all=list_all+food_info
33     return(list_all)
34 
35 def send_email(list_all):
36     global account,password,receiver
37     mailhost='smtp.qq.com'
38     qqmail = smtplib.SMTP()
39     qqmail.connect(mailhost,25)
40     qqmail.login(account,password)
41     content= '亲爱的，本周的热门菜谱如下'+list_all
42     message = MIMEText(content, 'plain', 'utf-8')
43     subject = '周末吃个啥'
44     message['Subject'] = Header(subject, 'utf-8')
45     try:
46         qqmail.sendmail(account, receiver, message.as_string())
47         print ('邮件发送成功')
48     except:
49         print ('邮件发送失败')
50     qqmail.quit()
51 
52 def job():
53     print('开始一次任务')
54     list_all = recipe_spider()
55     send_email(list_all)
56     print('任务完成')
57 
58 schedule.every().friday.at("18:00").do(job)#部署每周三的13：15执行函数的任务
59 
60 while True:
61     schedule.run_pending()
62     time.sleep(1)