Python抢购脚本的编写方法

```python
# coding=utf-8
import os
from selenium import webdriver
import datetime
import time
from os import path

#此处chromedriver改为自己下载解压的chromedriver的路径
driver = webdriver.Chrome("E:/JupyterNotebookSavePath/chromedriver")
#driver.maximize_window()

def login():
    #打开淘宝首页，扫码登陆淘宝
    driver.get("https://www.taobao.com")
    time.sleep(3)
    if driver.find_element_by_link_text("亲，请登录"):
        driver.find_element_by_link_text("亲，请登录").click()
        print("请在15秒内完成扫码")
        time.sleep(15)
        #打开购物车列表首页
        driver.get("https://cart.taobao.com/cart.htm")
        time.sleep(3)
        #全选购物车
    if driver.find_element_by_id("J_SelectAll1"):
        driver.find_element_by_id("J_SelectAll1").click()
    now = datetime.datetime.now()
    print("login success:", now.strftime("%Y-%m-%d %H:%M:%S"))

def buy(times):
    while True:
        #记录当前时间，使用datatime内置模块
        now = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        print(times)
        print(now)
        # 对比时间，时间到的话就点击结算
        if now == times:
            try:
                if driver.find_element_by_id("J_Go"):
                    driver.find_element_by_id("J_Go").click()
                    driver.find_element_by_link_text('提交订单').click()
                    print('抢购成功，请尽快付款')
            except:
                 print('请再次尝试提交订单')
        print(now)
        time.sleep(0.1)

if __name__ == "__main__":
    times = input("请输入抢购时间(例如格式：2021-02-01 00:00:00):")
    login()
    buy(times)