#encoding=utf-8
from selenium import webdriver
import time,os
driver = webdriver.Chrome() 
#打开网页  
driver.get(‘https://www.baidu.com/‘)  
driver.maximize_window()  
input_box = driver.find_element_by_id("kw").send_keys(‘selenium‘)   
driver.find_element_by_id("su").click()  
time.sleep(3)     
# 将页面滚动条拖到底部  
js = "var q=document.body.scrollTop=100000" 
driver.execute_script(js)  
time.sleep(3)  
# 将滚动条移动到页面的顶部  
js = "var q=document.body.scrollTop=0"  
driver.execute_script(js)  
time.sleep(3)  
# 将滚动条移动到页面的任意位置  
js = "var q=document.body.scrollTop=500"  
driver.execute_script(js)  
time.sleep(3)  
原文:http://www.cnblogs.com/yan-xiang/p/6618930.html