Selenium自动化：上传文件（一）——定位并点击输入框元素，并按键盘快捷键发送内容

    from selenium import webdriver
    import unittest
    import time
    import traceback
    from selenium.webdriver.support.ui import WebDriverWait
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support import expected_conditions as EC
    from selenium.common.exceptions import TimeoutException, NoSuchElementException
    
    class TestDemo(unittest.TestCase):
    
    def setUp(self):
        # 启动ie浏览器
        self.driver = webdriver.Ie(executable_path = "g:\ IEDriverServer")
    
    def t