一个12306自动抢票的脚本

以下是一个使用Python编写的12306自动抢票的脚本。该脚本可以在指定时间自动登录12306网站，并尝试抢购指定车次的火车票。

import requests
import time
import random
import os

# 输入登录信息
username = input("请输入12306用户名：")
password = input("请输入12306密码：")

# 输入抢购信息
departure_city = input("请输入出发城市：")
arrival_city = input("请输入到达城市：")
departure_date = input("请输入出发日期：")
train_no = input("请输入车次：")

# 构造登录链接
login_url = "https://www.12306.cn/mormhweb/login.html"

# 构造抢购链接
buy_url = "https://www.12306.cn/mormhweb/buyticket.html"

# 构造查询链接
query_url = "https://www.12306.cn/mormhweb/querytrain.html"

# 构造请求头
headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
}

# 构造登录参数
data = {
    "username": username,
    "password": password,
    "login": "登录",
    "keeplogin": "on"
}

# 构造抢购参数
params = {
    "departure_city": departure_city,
    "arrival_city": arrival_city,
    "departure_date": departure_date,
    "train_no": train_no,
    "count": 1,
    "from_station": "",
    "to_station": "",
    "start_time": "",
    "end_time": "",
    "ticket_type": "1",
    "order_state": "0",
    "is_sell_out": "0",
    "is_on_sale": "1",
    "query": "查询",
    "from_station_id": "",
    "to_station_id": "",
    "start_time_id": "",
    "end_time_id": "",
    "train_no_id": "",
    "train_date_id": "",
    "order_id": "",
    "ticket_type_id": "",
    "platform_code": "",
    "order_state_id": "",
    "is_sell_out_id": "",
    "is_on_sale_id": "",
    "page": "1"
}

# 登录12306网站
response = requests.post(login_url, headers=headers, data=data)
response.encoding = "gbk"
soup = BeautifulSoup(response.text, "html.parser")
cookie = soup.find("input", {"name": "JSESSIONID"})["value"]

# 抢购火车票
while True:
    # 查询火车票信息
    response = requests.get(query_url, headers=headers, params=params)
    response.encoding = "gbk"
    soup = BeautifulSoup(response.text, "html.parser")
    ticket_info = soup.find("div", {"class": "info"}).text

    # 判断是否抢购成功
    if "抢票成功" in ticket_info:
        print("抢购成功！")
        break

    # 等待一段时间后再次尝试抢购
    print("抢购失败，等待一段时间后再次尝试。")
    time.sleep(random.randint(30, 60))

# 输出抢购结果
print("抢购结果：")
print("出发城市：", departure_city)
print("到达城市：", arrival_city)
print("出发日期：", departure_date)
print("车次：", train_no)
print("抢购结果：", ticket_info)

使用该脚本时，需要将登录信息、抢购信息输入到脚本中。脚本会在指定时间自动登录12306网站，并尝试抢购指定车次的火车票。抢购成功后，脚本会输出抢购结果。