from selenium.common.exceptions import NoSuchElementException

# 封装一个函数，用来判断属性值是否存在

def isElementPresent(driver, path):

"""

用来判断元素标签是否存在，

"""

try:

element = driver.find_element_by_xpath(path)

# 原文是except NoSuchElementException, e:

except NoSuchElementException as e:

# 发生了NoSuchElementException异常，说明页面中未找到该元素，返回False

return False

else:

# 没有发生异常，表示在页面中找到了该元素，返回True

return True

写个刷bilibili火锅的脚本测试一下：

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

import json

from selenium.webdriver.support.ui import Select

import time

from selenium.common.exceptions import NoSuchElementException

# 封装一个函数，用来判断属性值是否存在

def isElementPresent(driver, path):

"""

用来判断元素标签是否存在，

"""

try:

element = driver.find_element_by_xpath(path)

# 原文是except NoSuchElementException, e:

except NoSuchElementException as e:

# 发生了NoSuchElementException异常，说明页面中未找到该元素，返回False

return False

else:

# 没有发生异常，表示在页面中找到了该元素，返回True

return True

driver = webdriver.Chrome()

def bilibili_yeah():

while True:

if isElementPresent(driver, '/html/body/div[9]/div/div/div/div[2]'):

print("有X号")

driver.find_element_by_xpath('/html/body/div[9]/div/div/div/div[2]').click()

print(u"X点了")

elif isElementPresent(driver, '//*[@id="app"]/article/div[3]/div[2]/div[2]/div[1]/div[1]/div[1]/div[5]'):

print("有按钮")

driver.find_element_by_xpath('//*[@id="app"]/article/div[3]/div[2]/div[2]/div[1]/div[1]/div[1]/div[5]').click()

print("Clicked")

else:

print("等10s")

time.sleep(10)

driver.get("https://www.bilibili.com/blackboard/xianxing2020bnj.html?anchor=game")

#driver.implicitly_wait(130)

for i in range(40):

time.sleep(1)

print(40-i)

while True:

try:

bilibili_yeah()

except:

print("QAQ出问题等5s")

time.sleep(5)

Nice!