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

检查是否已经存在浏览器实例，如果存在则不再创建

for proc in psutil.process_iter(): try: if 'chrome' in proc.name() and '--remote-debugging-port=9223' in proc.cmdline(): options = Options() options.add_experimental_option('debuggerAddress', '127.0.0.1:9223') break except: pass else: # 创建浏览器实例 os.system(r'start chrome --remote-debugging-port=9223 --user-data-dir="D:\评阅用"') options = Options() options.add_experimental_option('debuggerAddress', '127.0.0.1:9223')

在已有的浏览器实例中查找标签页

driver = webdriver.Chrome(options=options) tabs = driver.window_handles for tab in tabs: driver.switch_to.window(tab) if driver.title == '国家开放大学个人空间': break

在网页中查找课程

elements = driver.find_elements(By.CLASS_NAME, 'learning_course') for element in elements: if element.text == '国家开放大学学习指南': element.click() break

切换到点击课程后的标签页

tabs = driver.window_handles for tab in tabs: if tab != driver.current_window_handle: driver.switch_to.window(tab) break

等待网页加载完成

driver.implicitly_wait(10)

判断网页是否卡住，如果卡住就刷新一下网页

if driver.execute_script('return document.readyState') != 'complete': driver.refresh()

在网页中查找'进行中'并点击

elements = driver.find_elements(By.CLASS_NAME, 'item-status') for element in elements: if element.text == '进行中': element.click() break else: # 如果没找到'进行中'，则点击全部展开 elements = driver.find_elements(By.CLASS_NAME, 'icon.font.font-toggle-all-collapsed') if elements: elements[0].click() # 等待课程全部展开 driver.implicitly_wait(10) # 再次查找'进行中'元素并点击 elements = driver.find_elements(By.CLASS_NAME, 'item-status') for element in elements: if element.text == '进行中': element.click() break

等待网页加载完成

driver.implicitly_wait(10)

判断网页是否卡住，如果卡住就刷新一下网页

if driver.execute_script('return document.readyState') != 'complete': driver.refresh()

在网页中查找所有展开按钮并点击

while True: elements = driver.find_elements(By.CLASS_NAME, 'font-toggle-collapsed') if not elements: break for element in elements: driver.execute_script('arguments[0].click();', element)

在网页中查找所有图标名称

icon_elements = driver.find_elements(By.CLASS_NAME, 'full-screen-activity-icon') icon_names = [] for element in icon_elements: icon_names.append(element.get_attribute('original-title'))

点击每个图标名称

clicked_icons = set() # 记录已经点击过的图标名称 for icon_name in icon_names: if icon_name in clicked_icons: # 如果该图标已经点击过，则跳过 continue

# 点击图标名称
elements = driver.find_elements(By.CLASS_NAME, 'full-screen-activity-icon')
for element in elements:
    if element.get_attribute('original-title') == icon_name:
        driver.execute_script('arguments[0].click();', element)
        break

# 等待网页加载完成
time.sleep(1)

# 判断网页是否卡住，如果卡住就刷新一下网页
if driver.execute_script('return document.readyState') != 'complete':
    driver.refresh()
    time.sleep(1)

# 判断是否遇到'参考资料'图标
if icon_name == '参考资料':
    # 等待参考资料加载完成
    driver.implicitly_wait(10)
    # 点击所有的文件名称
    file_elements = driver.find_elements(By.CLASS_NAME, 'file-name.ng-binding')
    for file_element in file_elements:
        driver.execute_script('arguments[0].click();', file_element)
        time.sleep(1)
    # 等待参考资料关闭按钮加载完成
    driver.implicitly_wait(10)
    # 点击关闭按钮
    close_elements = driver.find_elements(By.CLASS_NAME, 'font.font-close')
    for close_element in close_elements:
        driver.execute_script('arguments[0].click();', close_element)
        time.sleep(1)

clicked_icons.add(icon_name)  # 将已经点击过的图标名称加入集合中