Selenium ---- browser operation

#coding=utf-8
from selenium import webdriver
driver = webdriver.Firefox()
driver.get("http://www.baidu.com")

1. Browser maximize
　　driver.maximize_window ()

2. Set the browser width, height
　　driver.set_window_size (480,800)  ---- disposed browser width 480, high 800 displays

3. The browser forward, backward
　　driver.back ()        ---- operate the browser back driver.forward ()  ---- browser forward operation
　   

4. browser refresh driver.refresh ()  ---- refresh
　　

The browser acquires width, height
　　driver.get_window_size ()

6. Screenshot - stored in the current directory
　　driver.get_screenshot_as_file ( 'pictore.png')