感谢您提供代码。这段代码有一些问题，例如：

1. Dm() 类没有定义 url 变量，因此在登录方法中会出现错误。

2. 在登录方法中的 try-except 块中缺少一个 try 语句。

3. load_cookies 方法接收了两个参数：self 和 cookie_file，但在其他地方调用时只传递了一个参数。应该将 self.cookie_file 用作默认值。

4. 在 parse 方法中，缺少必要的请求 url。

5. 缩进不一致可能导致语法错误或意外行为。

根据上述问题，下面是修改后的代码：

# -*- coding: utf-8 -*-
"""
Created on 2023-05-05 12:37:32
---------
@summary:
---------
@author:
"""
import time
import pickle
from selenium import webdriver
import pytesseract
from PIL import Image
from lxml import etree
import feapder
from feapder.utils.webdriver import WebDriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC


class Dm(feapder.AirSpider):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.cookie_file = "dm_cookies.txt"  # 保存 cookie 的文件名

    def start_requests(self):
        yield feapder.Request(
            "https://m.damai.cn/damai/minilogin/index.html?returnUrl=https%3A%2F%2Fm.damai.cn%2Fapp%2Fdmfe%2Fh5-ultron-buy%2Findex.html%3FbuyParam%3D720545258599_1_5016701340287%26buyNow%3Dtrue%26exParams%3D%25257B%252522channel%252522%25253A%252522damai_app%252522%25252C%252522damai%252522%25253A%2525221%252522%25252C%252522umpChannel%252522%25253A%252522100031004%
            22 % 25 22subChannel % 25 22 : % 25 22damai % 2540damaih5_h5 % 25 22atomSplit % 25
            22:1 % 257D & spm = undefined & sqm = dianying.h5.unknown.value & spm=a2o71.project.0.0",
            callback=self.login,
            dont_filter=True,
            render=True,
            request_type="login"
        )

    # 使用保存的 Cookie 自动登录
    def login(self, request, response):
        try:
            # 定义请求 url
            url = "https://m.damai.cn/app/dmfe/h5-ultron-buy/index.html?buyParam=720545258599_1_5016701340287&buyNow=true&exParams=%7B\"channel\":\"damai_app\",\"damai\":\"1\",\"umpChannel\":\"100031004\",\"subChannel\":\"damai@damaih5_h5\",\"atomSplit\":1\}&spm=undefined&sqm=dianying.h5.unknown.value"

            # 从文件中读取 Cookie
            cookies = self.load_cookies()
            
            if cookies:
                # 如果 Cookie 已存在，则直接使用 Cookie 发送请求
                headers = {
                    "Cookie": "; ".join([f"{c['name']}={c['value']}" for c in cookies])
                }
                yield feapder.Request(url=url, headers=headers, render=True)
            else:
                # 如果 Cookie 不存在，则需要手动输入账号和密码登录并保存 Cookie
                print("请在浏览器中手动输入账号和密码，并登录网站")
                print("登录成功后，请勿退出登录或清除浏览器缓存，本程序会自动化获取验证码并登录")

                # 输入验证码自动登录
                browser = webdriver.Chrome()
                browser.get(url)

                # 等待用户手动输入用户名和密码后，自动跳转到首页
                input("请在浏览器中完成登录操作，完成后按 Enter 键继续...")

                # 保存 Cookie
                cookies = browser.get_cookies()
                
                with open(self.cookie_file, "wb") as f:
                    pickle.dump(cookies, f)

                browser.quit()

                # 使用保存的 Cookie 发送请求
                headers = {
                    "Cookie": "; ".join([f"{c['name']}={c['value']}" for c in cookies])
                }
                
                yield feapder.Request(url=url, headers=headers, render=True)
        except Exception as e:
            print(f"登录失败：{str(e)}")
            

    def load_cookies(self, cookie_file=None):
        if not cookie_file:
            cookie_file = self.cookie_file

        # 从文件中读取 cookies
        try:
            with open(cookie_file, "rb") as f:
               cookies = pickle.load(f)

            # 将 cookies 转换为字典类型
            cookies_dict = {}
            for cookie in cookies:
                cookies_dict[cookie['name']] = cookie['value']

            return cookies_dict
        except Exception as e:
            print(f"无法读取 Cookie 文件：{str(e)}")
            
    def parse(self, request, response):
        start = time.time()
        browser: WebDriver = response.browser

        wait = WebDriverWait(browser, 10)
        
        # 选城市
        but = wait.until(EC.element_to_be_clickable((By.XPATH, '//*[@id="card-720545258599"]/div/div')))
        but.click()
        
        # 选场次
        but_chengshi = wait.until(EC.element_to_be_clickable((By.XPATH, '//*[@id="app"]/div/div[1]/div[3]/div')))
        but_chengshi.click()
        
        # 选多少钱的场次
        but_1717 = wait.until(EC.element_to_be_clickable((By.XPATH, '/html/body/div[6]/div[2]/div/div/div/div/div[3]/div[2]/div[6]/div[1]')))
        but_1717.click()
        
        # 确认选座
        Click_OK = wait.until(EC.element_to_be_clickable((By.XPATH, '/html/body/div[6]/div[2]/div/div/div/div/div[4]/div[2]/div[2]')))
        Click_OK.click()

        print(time.time() - start)

if __name__ == "__main__":
    Dm().start()