# 将窗口大小实例化
size_Dict = driver.get_window_size()
# 打印浏览器的宽和高
print("当前浏览器的宽：", size_Dict['width'])
print("当前浏览器的高：", size_Dict['height'])

driver.set_window_size(width=500, height=500, windowHandle="current")

# 将窗口位置实例化
position = driver.get_window_position()
# 打印窗口坐标
print(position)
print("浏览器所在位置的横坐标：", position["x"])
print("浏览器所在位置的纵坐标：", position["y"])

# 设置窗口位置并打印位置坐标
driver.set_window_position(x=100, y=200)
print(driver.get_window_position())

# 最大化浏览器并输出浏览器的大小和位置坐标
driver.maximize_window()
print(driver.get_window_size())
print(driver.get_window_position())

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Firefox()driver.get("http://somedomain/url_that_delays_loading")
try:  
  element = WebDriverWait(driver, 10).until(     
    EC.presence_of_element_located((By.ID, "myDynamicElement")))
finally:
  # 等待后执行的代码
  # driver.quit()

from selenium import webdriver

driver = webdriver.Firefox()
driver.implicitly_wait(10) # seconds
driver.get("http://somedomain/url_that_delays_loading")
myDynamicElement = driver.find_element_by_id("myDynamicElement")

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

# 实例化一个启动参数对象
chrome_options = Options()
# 无界面运行（无窗口）
chrome_options.add_argument('--headless')
# 启动浏览器
driver = webdriver.Chrome(chrome_options=chrome_options)
# 请求百度首页
driver.get('http://www.baidu.com')

# 通过设置user-agent，用来模拟移动设备
# 比如模拟 android QQ浏览器
options.add_argument('user-agent="MQQBrowser/26 Mozilla/5.0 (Linux; U; Android 2.3.7; zh-cn; MB200 Build/GRJ22; CyanogenMod-7) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1"')

# 模拟iPhone 6
options.add_argument('user-agent="Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1"')

# 禁止图片的加载
from selenium import webdriver
chrome_options = webdriver.ChromeOptions()
prefs = {"profile.managed_default_content_settings.images": 2}
chrome_options.add_experimental_option("prefs", prefs)