1控制浏览器窗口的大小
driver.set_window_size(480,480) 代码：
from selenium import webdriver
from time import *
driver = webdriver.Chrome()
url = "http://www.baidu.com"
driver.get(url)
print("设置浏览器的宽和高")
driver.set_window_size(480,480)
sleep(3)
print("设置窗口最大化")
driver.maximize_window()
sleep(3)
driver.quit()2.控制浏览器后退、前进back和forward方法
from selenium import webdriver
from time import *
driver = webdriver.Chrome()
url = "http://www.baidu.com"
print('new access %s' %(url))
driver.get(url)
url2 = 'http://news.baidui.com'
print('new access %s' %(url2))
driver.get(url2)
sleep(3)
print("back to %s" %(url))
driver.back()
sleep(3)
print("forword to %s" %(url2))
driver.forward()
sleep(3)
driver.quit()3.模拟浏览器的刷新
手动刷新（F5）页面:driver.refresh()
from selenium import webdriver
from time import *
driver = webdriver.Chrome()
url = "http://www.baidu.com"
print('new access %s' %(url))
driver.get(url)
sleep(3)
driver.refresh()
sleep(3)
driver.quit()
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