# 进入课件库
def enter_courses_library(driver):
global library_window, course_window, movie_window
global course_mark
course_mark = get_recent_coursemark(driver)
driver.find_element(By.CSS_SELECTOR,'a[href="/pc/course/courselist.do"]').click()
time.sleep(3)
library_window = driver.current_window_handle
while course_mark < PASS_SCORE:
coursestype_select(driver, course_type)
coursestype_select(driver, '选修')
# 判断是学习选修课还是必修课
def coursestype_select(driver,course_type):
try:
# 等待元素出现，并定位到元素 这里detail是整个页面的ID
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//*[@id="detail"]/div[2]/div[1]/div/button[2]')))
driver.find_element(By.XPATH, '//*[@id="detail"]/div[2]/div[1]/div/button[2]').click()
except:
# 如果出现异常，则打印错误消息
print("无法定位到|列表显示|，请检查定位是否正确")
# 点击必修函数
driver.find_element(By.CSS_SELECTOR,f'a[title="{course_type}"]').click()
time.sleep(3)
WebDriverWait(driver,10).until(EC.presence_of_element_located((By.XPATH,'//*[@id="detail"]/div[2]/div[2]/div/table/tbody/tr[7]/td[2]')))
if course_type == '必修':
required_courses = driver.find_elements(By.XPATH, '//table/tbody/tr')
for course in required_courses:
course_chose(driver, course)
else:
optional_courses = driver.find_elements(By.XPATH, '//table/tbody/tr')
print(len(optional_courses))
for course in optional_courses:
course_chose(driver, course)
def course_chose(driver, course):
global library_window, course_window, movie_window
global course_mark
try:
img_exist = course.find_element(By.XPATH, './td[1]/img')
except Exception as e:
img_exist = []
WebDriverWait(driver,10).until(EC.presence_of_element_located((By.XPATH,'/html/body/div[4]/div[2]/div[2]/div/table/tbody/tr[6]/td[1]/a/span')))
if not img_exist or img_exist.get_attribute('src') != COURSE_YWC:
course_score = course.find_element(By.XPATH, 'td[4]').text
#将当前课程的学分进行正则去掉中文保留数字
course_score = float(re.search(r'\d+\.?\d*', course_score).group())
print(course_score)
play_btn = course.find_element(By.XPATH,'./td[6]/a[@class="learn"]')
course_url = play_btn.get_attribute('href')
play_btn.click()
time.sleep(3)
WebDriverWait(driver,10).until(EC.new_window_is_opened)
handles = driver.window_handles
if len(handles) == 2:
driver.switch_to.window(handles[-1])
course_window = driver.current_window_handle
print(driver.current_url,driver.title)
WebDriverWait(driver,10).until(EC.presence_of_element_located((By.XPATH,'//*[@id="chapter"]/table/tbody/tr[1]/td[1]/span')))
# 课程学习函数
course_learn(driver)
course_mark += course_score
print("这是完整学完一个课程后，打印下当前的已经获得的couse_mark和当前课程的分数",course_mark,course_score)
driver.close()
time.sleep(1)
WebDriverWait(driver,10).until(EC.number_of_windows_to_be(1))
driver.switch_to.window(library_window)
time.sleep(1)
#对当前页面进行刷新，使得进度等于100%
# driver.refresh()
WebDriverWait(driver, 10).until(EC.presence_of_all_elements_located((By.XPATH, '//table/tbody/tr')))
time.sleep(1)
# 测试一下跳转的对不对
main_url = driver.current_url
print("测试能否回到课程库，当前网页的地址是： ",main_url)
def course_learn(driver):
global library_window, course_window, movie_window
global waiting_time
WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.XPATH,'//table/tbody/tr')))
trs = driver.find_elements(By.XPATH,'//table/tbody/tr')
for i, tr in enumerate(trs):
print(f"当前执行循环：{i}")
course_progress = int(tr.find_element(By.XPATH,'./td[4]/span').text)
if course_progress != 100:
course_times = float(tr.find_element(By.XPATH,'./td[2]/span').text)*60
waiting_time = int(course_times * ((100-float(course_progress)) / 100))
try:
tr.find_element(By.CLASS_NAME,'playBtn').click()
WebDriverWait(driver,10).until(EC.new_window_is_opened)
WebDriverWait(driver,10).until(EC.number_of_windows_to_be(3))
handles = driver.window_handles
driver.switch_to.window(handles[-1])
movie_window = driver.current_window_handle
movie_learn(driver)
print(f"学完第{i}节课后的课程URL：", driver.current_url)
except Exception as e:
logging.exception(f"学习第{i}节课出错，异常信息：{e}")
else:
print(f"第{i}课已学完")
time.sleep(2)
url_now = driver.current_url
print("这是学完一个课程后，关闭当前课程回到课程库的测试",url_now)
# 视频播放函数
def movie_learn(driver):
global library_window, course_window, movie_window
global waiting_time
WebDriverWait(driver,10).until(EC.presence_of_element_located((By.CLASS_NAME,'col-md-10')))
driver.switch_to.frame(driver.find_element(By.ID,'mainFrame'))
first_confirm(driver)
print(f"视频时长为{waiting_time/60}分钟")
# 测试 改下时间
time.sleep(5)
# time.sleep(waiting_time + 20)
driver.switch_to.default_content()
driver.find_element(By.ID, 'completebtn').click()
WebDriverWait(driver,10).until(EC.alert_is_present())
#再次对弹出框进行确认
driver.switch_to.alert.accept()
# 等待视频播放函数完成一个课程学习后，跳转句柄到课程页面
WebDriverWait(driver,10).until(EC.number_of_windows_to_be(2))
driver.switch_to.window(course_window)
time.sleep(2)
driver.refresh()
# handles = driver.window_handles
# driver.switch_to.window(handles[1])
print("movie_learn后面跳转窗口网页地址是否正确",driver.current_url)
selenium编写自动化学习脚本时碰到的循环跳出问题，应该就是你的程序的问题，在course_learn函数的for循环中解析到的trs可能只有一个值，所以循环了一次就退出了，你可以在这个地方把str打印输出下。
其次 跳出循环的还有一个可能就是你的程序报错了，我看你的程序捕获了异常并把异常信息写入了日志，建议查看下日志文件中的错误信息，或者修改代码使用print方法来输出错误信息，这样就可以在控制台看到报了什么错误。
如果你还不确定哪里的问题，可以使用debug调试模式一步步调试代码