这两天一直在搞这个例子，遇到了非常多的困难，总之，学到了很多，竟然忘了记录下来，下次一定注意。
功能是根据时间、地点和自己感兴趣的车次名称，不断筛选出发车信息，直到满足条件，然后点击预定，勾选乘车人身份信息，点击确定，发出铃声提醒人下订单。
# coding:utf-8# author:chengchen# time:2018.8.7 from selenium.webdriver.support.ui import Select from selenium import webdriver from winsound import Beep import time, sys#报错的话，添加以下代码，忽略报错options = webdriver.ChromeOptions()
options.add_experimental_option("excludeSwitches", ["ignore-certificate-errors"])
driver=webdriver.Chrome(chrome_options=options)
driver = webdriver.Chrome()
driver.implicitly_wait(10)
driver.get("https://kyfw.12306.cn/otn/login/init")
driver.find_element_by_id('username').send_keys('18151032084')#为了不泄露密码，就没自动化，需要人工干涉，这部分后面会用cookie保持sessions会话机制。raw_input('登录界面，请输入密码登录后，按回车')
driver.get("https://kyfw.12306.cn/otn/leftTicket/init")`# 输入起始站点和终点fromEle = driver.find_element_by_id('fromStationText')
fromEle.click()
fromEle.clear()
fromEle.send_keys(u'南京\n')
toEle = driver.find_element_by_id('toStationText')
toEle.click()
toEle.clear()
toEle.send_keys(u'镇江\n')
timeSelect = Select(driver.find_element_by_id('cc_start_time'))
timeSelect.select_by_visible_text('06:00--12:00')#找到后天那个元素tomorrow = driver.find_element_by_css_selector('#date_range li:nth-child(3)')
i=0while True:
i += 1
isGet = False # 设置为没有找到
tomorrow.click() # 选择二等座有票的车
xpath = '//*[@id="queryLeftTable"]//td[4][@class]/../td[1]//a'
interested = ['G7035', 'G7039', 'G1377', 'G7355']
theTrains = driver.find_elements_by_xpath(xpath) for one in theTrains:
name = one.text if name in interested:
isGet = True
print("you yu piao\n" + name) # 找到当前元素的上层节点
target = one.find_elements_by_xpath('../../../../../td[last()]')
firstbutton=target[0]
firstbutton.click()
time.sleep(4)
driver.find_element_by_id('normalPassenger_0').click()
driver.find_element_by_id('submitOrder_id').click()
Beep(1500, 2000)
sys.exit() if isGet==False:
print('{%i}轮搜索没有找到'%i)
time.sleep(5)
作者：Root_123
链接：https://www.jianshu.com/p/8a8dda45ae45
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