from selenium import webdriver

#select模块处理下拉框
from selenium.webdriver.support.ui import Select

# Keys模拟键盘操作

from selenium.webdriver.common.keys import Keys

# ActionChains模块模拟鼠标操作

from selenium.webdriver import ActionChains

#显示等待与显示等待中的期待场景

# 导入堆栈类
import traceback
# 导入By类
from selenium.webdriver.common.by import By
# 导入显示等待类
from selenium.webdriver.support.ui import WebDriverWait
# 导入期望场景类
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException, NoSuchElementException