由于车票难抢，有时需要的车票已经售空，而我们需要捡漏，便可使用这个脚本。
具体实现了，自动查询某一车票的余票数量，当数量产生变化时，将自动发送qq邮件到对于的邮箱进行提醒。
其中，发送邮箱的部分详情可参考我上一篇博文：python 发送邮件 (smtp) qq邮箱
脚本使用了python + selenium + chrome webdriver，需要先配置好三者的环境。
具体使用时候，需自行改变代码中的
邮箱信息、出发站、到达站、车次、日期、以及到相应查询页面中找到对应车票的html id：
在相应查询页面中按f12，弹出开发者模式，点击
按钮，再点击对应车票的框，
，
，复制相应的id号到代码中对应处。
代码如下：
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#coding:utf8
from selenium import webdriver
from selenium.webdriver.common.keys import keys
import time
from smtplib import smtp_ssl
from email.header import header
from email.mime.text import mimetext
from_station = 'sh'
to_station = 'nj'
train_num = 'g14'
train_date = '2018-02-14'
zyid = 'zy_5l00000g1441' #通过浏览器找到要查询车票的三个id
zeid = 'ze_5l00000g1441'
wzid = 'wz_5l00000g1441'
def send_email(train_date, train_num, one_num, two_num, wz_num): #函数中邮箱信息改为自己的
email_from = "123456@qq.com"
email_to = "654321@qq.com"
hostname = "smtp.qq.com"
login = "123456@qq.com"
password = "xddflwjfkkfkbidf"
subject = "train_tickets"
text = ("日期:%s 车次:%s 一等座:%s 二等座:%s 无座:%s "%(train_date, train_num, one_num, two_num, wz_num))
smtp = smtp_ssl(hostname)
smtp.login(login, password)
msg = mimetext(text, "plain", "utf-8")
msg["subject"] = header(subject, "utf-8")
msg["from"] = email_from
msg["to"] = email_to
smtp.sendmail(email_from, email_to, msg.as_string())
smtp.quit()
driver = webdriver.chrome()
elem = driver.find_element_by_id("fromstationtext")
elem.clear()
elem.send_keys(from_station)
elem.send_keys(keys.enter) #写入始发站
elem = driver.find_element_by_id("tostationtext")
elem.clear()
elem.send_keys(to_station)
elem.send_keys(keys.enter) #写入终点站
js = "document.getelementbyid('train_date').removeattribute('readonly')" #去除日期栏只读属性
driver.execute_script(js)
elem=driver.find_element_by_id("train_date")
elem.clear()
elem.send_keys(train_date) #写入乘车日期
elem.click()
elem=driver.find_element_by_id("dc") #选择单程
elem.click()
elem=driver.find_element_by_id("a_search_ticket") #开始查询
try:
elem.click()
except exception:
time.sleep(2)
query_times = 0
onetickets_last = 0
twotickets_last = 0
wztickets_last = 0
time.sleep(2)
while(1):
query_times = query_times+1
text=""
try:
driver.find_element_by_id("query_ticket").click() #根据查询键是否可以找到，以判断页面显示正确与否
except exception:
driver.refresh()
time.sleep(5);
print("bug");
continue
print("第%d次查询:"%(query_times))
time.sleep(5)
try:
text = driver.find_element_by_id(zyid).text
except exception:
driver.refresh()
time.sleep(5);
print("bug")
continue
if not(driver.find_element_by_id(zyid).text):
driver.find_element_by_id("query_ticket").click()
text = driver.find_element_by_id(zyid).text #查询一等座余票
if(text == "有" or text == "无"):
onetickets_now = text
print("%s 一等座 ： %s"%(train_num, onetickets_now))
if(onetickets_now != onetickets_last):
onetickets_last = onetickets_now
#send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
else:
onetickets_now = text
print("%s 一等座剩余票数 ： %s"%(train_num, onetickets_now))
if(onetickets_now != onetickets_last):
onetickets_last = onetickets_now
#send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
text = driver.find_element_by_id(zeid).text #查询二等座余票
if(text == "有" or text == "无"):
twotickets_now = text
print("%s 二等座 ： %s"%(train_num, twotickets_now))
if(twotickets_now != twotickets_last):
twotickets_last = twotickets_now
send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
else:
twotickets_now = text
print("%s 二等座剩余票数 ： %s"%(train_num,twotickets_now))
if(twotickets_now != twoticketstwotickets_old):
twotickets_last = twotickets_now
send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
text = driver.find_element_by_id(wzid).text #查询无座余票
if(text == "有" or text == "无"):
wztickets_now = text
print("%s 无座 ： %s"%(train_num, wztickets_now))
if(wztickets_now != wztickets_last):
wztickets_last = wztickets_now
send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
else:
wztickets_now = text
print("%s 无座剩余票数 ： %s"%(train_num, wztickets_now))
if(wztickets_now != wztickets_last):
wztickets_last = wztickets_now
send_email(train_date, train_num, onetickets_last, twotickets_last, wztickets_last)
print("")
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/Meringue_/article/details/79207241