Python查询火车票

import re, json, time from selenium import webdriver def get_ticket():     from_city = input("出发站:")     to_city = input("到达站:")     date = input("出发日期(格式:2019-12-30):")     file_name = input("存储文件:")     driver = webdriver.Chrome()     # 起始url     url = 'https://www.12306.cn/index/'     # 发送请求     driver.get(url)     # 等待2s     time.sleep(2)     # 清除原有的值     driver.find_element_by_id('fromStationText').clear()     # 点击，使输入框获取焦点     driver.find_element_by_id('fromStationText').click()     # 输入值     driver.find_element_by_id('fromStationText').send_ke