# -*- coding: UTF-8 -*- 
import os,re,urllib,uuid 
 
#首先定义云端的网页,以及本地保存的文件夹地址 
urlPath='http://gamebar.com/' 
localPath='d:\\pythonPath' 
 
 
#从一个网页url中获取图片的地址，保存在 
#一个list中返回 
def getUrlList(urlParam): 
  urlStream=urllib.urlopen(urlParam) 
  htmlString=urlStream.read() 
  if( len(htmlString)!=0 ): 
    patternString=r'http://.{0,50}\.jpg' 
    searchPattern=re.compile(patternString) 
    imgUrlList=searchPattern.findall(htmlString) 
    return imgUrlList 
 
     
#生成一个文件名字符串  
def generateFileName(): 
  return str(uuid.uuid1()) 
 
   
#根据文件名创建文件  
def createFileWithFileName(localPathParam,fileName): 
  totalPath=localPathParam+'\\'+fileName 
  if not os.path.exists(totalPath): 
    file=open(totalPath,'a+') 
    file.close() 
    return totalPath 
   
 
#根据图片的地址，下载图片并保存在本地  
def getAndSaveImg(imgUrl): 
  if( len(imgUrl)!= 0 ): 
    fileName=generateFileName()+'.jpg' 
    urllib.urlretrieve(imgUrl,createFileWithFileName(localPath,fileName)) 
 
 
#下载函数 
def downloadImg(url): 
  urlList=getUrlList(url) 
  for urlString in urlList: 
    getAndSaveImg(urlString) 
     
downloadImg(urlPath) 

def webscreen():
  url = 'http://www.xxx.com'
  driver = webdriver.PhantomJS()
  driver.set_page_load_timeout(300)
  driver.set_window_size(1280,800)
  driver.get(url)
  imgelement = driver.find_element_by_id('XXXX')
  location = imgelement.location
  size = imgelement.size
  savepath = r'XXXX.png'
  driver.save_screenshot(savepath)
  im = Image.open(savepath)
  left = location['x']
  top = location['y']
  right = left + size['width']
  bottom = location['y'] + size['height']
  im = im.crop((left,top,right,bottom))
  im.save(savepath)