from selenium import webdriverimport timeimport randomurl = raw_input('Input your website:').strip()num = int(raw_input('How much times do you want:'),10)options = webdriver.FirefoxOptions()options.add_argument('--headless')browser = webdriver.Firefox(firefox_options=options)browser.get(url)print 'Please wait...'for i in range(num):  i += 1  print 'Refresh +%d' %i  time.sleep(random.randint(1,3))  browser.refresh()browser.quit()print 'Good Bye!'

# coding=utf-8import timefrom selenium import webdriver driver = webdriver.Chrome()driver.maximize_window()driver.implicitly_wait(6) driver.get("https://www.baidu.com")time.sleep(2)try:  driver.refresh() # 刷新方法 refresh  print ('test pass: refresh successful')except Exception as e:  print ("Exception found", format(e))driver.quit()