地区列车经过查询

 1 # coding:utf-8
 2 # 
 3 # 把qq.ip138.com/train/上面的列车时刻表抓取解析出来，输出在命令行显示，并存入一个文件train_time.text
 4 # 
 5 import requests
 6 import time
 7 from bs4 import BeautifulSoup
 8 import random
 9 
10 BSLIB = ‘html5lib‘
11 BASE_URL = ‘http://qq.ip138.com‘
12 UA = ["Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36", "Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0", "Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0", "Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0", "Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0"]
13 
14 
15 def get_province(province, url,file):
16     print(province)
17     file.write("%s\n" % province)
18     HEADERS = {‘user-agent‘: random.choice(UA)}
19     r = requests.get(url, headers=HEADERS)
20     s = BeautifulSoup(r.text.encode(r.encoding).decode(‘gbk‘), BSLIB)
21     C = s.select(‘div > table > tbody > tr > td > a‘)
22     for c in C: # 每个城市
23         get_city(c.text, BASE_URL+c.get(‘href‘),file)
24     time.sleep(random.random()*30) # 防止因访问频繁而被拒绝请求
25 
26 
27 def get_city(city, url,file):
28     print(‘  %s‘ % city)
29     file.write("  %s\n" % city)
30     HEADERS = {‘user-agent‘: random.choice(UA)}
31     r = requests.get(url, headers=HEADERS)
32     s = BeautifulSoup(r.text.encode(r.encoding).decode(‘gbk‘), BSLIB)
33     T = s.select(‘div#checilist > table > tbody > tr‘)
34     for t in T: # 每个车次
35         t_text = "\t"
36         tt = t.select(‘td‘)
37         for i in tt: # 每个车次的具体每个信息用\t隔开
38             t_text += "%s\t" % i.text
39         print(t_text)
40         file.write(‘%s\n‘ % t_text)
41     time.sleep(random.random()*4)# 防止因访问频繁而被拒绝请求
42 
43 if __name__==‘__main__‘:
44     out_file = open(‘train_time.txt‘, ‘w‘)
45     url = BASE_URL+‘/train/‘
46     HEADERS = {‘user-agent‘: random.choice(UA)}
47     r = requests.get(url, headers=HEADERS)
48     s = BeautifulSoup(r.text.encode(r.encoding).decode(‘gbk‘), BSLIB)
49     P = s.select(‘table[width="600"] > tbody > tr > td > a‘)
50     for p in P: # 每个省份
51         get_province(p.text, BASE_URL+p.get(‘href‘), out_file)
52         
53         
54         
55 
56 地区列车经过查询