自动批改系统：随机减分功能实现

from selenium.webdriver.chrome.options import Options
from selenium import webdriver
from selenium.webdriver.common.by import By
import time
import os
import random


def get_driver():
    # 检查是否已经打开浏览器
    browser_opened = False
    for handle in webdriver.Chrome().window_handles:
        browser_opened = True
        break

    # 创建浏览器实例或在已有浏览器中操作
    if browser_opened:
        options = Options()
        options.debugger_address = "127.0.0.1:9222"
        driver = webdriver.Chrome(options=options)
    else:
        os.system(r'start chrome --remote-debugging-port=9222 --user-data-dir="D:\评阅用"')
        options = Options()
        options.add_experimental_option("debuggerAddress", "127.0.0.1:9222")
        driver = webdriver.Chrome(options=options)

    return driver


driver = get_driver()

# 找到有‘内蒙古开放大学’字样的标签页
while True:
    for handle in driver.window_handles:
        driver.switch_to.window(handle)
        if '内蒙古开放大学' in driver.title:
            print("登录成功")
            break
    else:
        time.sleep(3)
        continue
    break

# 遍历题目组，查找待批改和题号元素
elements = driver.find_elements(By.CLASS_NAME, "card-div")
for element in elements:
    # 查找待批改元素
    card_score_element = element.find_element(By.CLASS_NAME, "card-score")
    if '待批改' not in card_score_element.text:
        continue
    # 查找题号元素
    subject_number_element = element.find_element(By.CLASS_NAME, "subject-number")
    subject_number_text = subject_number_element.text
    # 提取题号
    subject_number = ""
    for char in subject_number_text:
        if char.isdigit():
            subject_number += char
    print("待批改的题目号：", subject_number)

    # 定位元素并统计数量
    elements = driver.find_elements(By.ID, f"subject-{subject_number}")
    count = len(elements)
    print(f"第{subject_number}题的分值元素数量为：{count}")

    # 随机减分
    if count <= 1:
        # 对这个分值随机减去1-2分
        summary_element = elements[0].find_element(By.CLASS_NAME, "summary-sub-title")
        summary_text = summary_element.text
        summary_number = ""
        for char in summary_text:
            if char.isdigit():
                summary_number += char
        new_score = int(summary_number) - random.randint(1, 2)
        summary_element.click()
        summary_input_element = elements[0].find_element(By.CLASS_NAME, "summary-input")
        summary_input_element.clear()
        summary_input_element.send_keys(str(new_score))
        summary_input_element.send_keys("\n")
        print(f"第{subject_number}题的分值减少了{summary_number - new_score}分")

    else:
        # 随机对其中的2-5个数字减去1-2分
        random_elements = random.sample(elements, random.randint(2, 5))
        for element in random_elements:
            summary_element = element.find_element(By.CLASS_NAME, "summary-sub-title")
            summary_text = summary_element.text
            summary_number = ""
            for char in summary_text:
                if char.isdigit():
                    summary_number += char
            new_score = int(summary_number) - random.randint(1, 2)
            summary_element.click()
            summary_input_element = element.find_element(By.CLASS_NAME, "summary-input")
            summary_input_element.clear()
            summary_input_element.send_keys(str(new_score))
            summary_input_element.send_keys("\n")
            print(f"第{subject_number}题的分值减少了{summary_number - new_score}分")

本文代码展示了如何使用Selenium实现自动批改系统，并添加了随机减分功能。代码首先定义了get_driver()函数，用于创建Chrome浏览器实例。然后，代码查找页面中包含‘内蒙古开放大学’字样的标签页，并获取待批改的题目信息。代码接着对每个题目进行随机减分处理，根据分值元素数量的不同，选择不同的减分策略。最后，代码会打印出每个题目减分后的结果。

使用Selenium实现自动批改系统可以显著提高批改效率，而随机减分功能则可以增加批改的随机性，避免人工批改过程中的主观性。