python实现桌面壁纸切换功能

import requestsimport jsonimport randomimport os#存放Ajax图片地址数据 img_url_dict={}#创建图片tmp文件夹if not os.path.exists('image'):  os.mkdir('image')#爬取图片url地址def getImgurl(root_url,sn):  params={    'ch': 'wallpaper',    't1': 157,    'sn': sn,    'listtype': 'new',    'temp': 1  }  headers={    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit / 537.36(KHTML, like Gecko)Chrome/62.0 3202.62 Safari / 537.36'  }  try:    response=requests.get(root_url,params=params,headers=headers)  except RequestException:    return None  data=json.loads(response.text).get('list')  img_url_list=[]  for item in data:    img_url_list.append(item.get('cover_imgurl'))  img_url_dict[sn]=img_url_list#下载图片def download_image(name,image_url):  try:    response=requests.get(image_url)  except RequestException:    return "图像请求出错"  file_name='{}/{}.{}'.format('image',name,'bmp');  with open(file_name,'wb') as file:    file.write(response.content)#获取随机url地址并下载至image文件夹def get_img():  sn=30*random.randint(1,15)  try:    img_url_dict[sn]  except KeyError:    getImgurl('http://image.so.com/zj',sn)  index=random.randint(0,len(img_url_dict[sn])-1)  url=img_url_dict[sn][index]  download_image('wallpaper',url)

import win32api, win32gui, win32conimport timedef setWallPaper(pic):  # open register  regKey = win32api.RegOpenKeyEx(win32con.HKEY_CURRENT_USER,"Control Panel//Desktop",0,win32con.KEY_SET_VALUE)  win32api.RegSetValueEx(regKey,"WallpaperStyle", 0, win32con.REG_SZ, "2")  win32api.RegSetValueEx(regKey, "TileWallpaper", 0, win32con.REG_SZ, "0")  # refresh screen  win32gui.SystemParametersInfo(win32con.SPI_SETDESKWALLPAPER,pic, win32con.SPIF_SENDWININICHANGE)

if __name__=='__main__':  while True:    get_img()    pic='your_path/image/wallpaper.bmp'#写绝对路径    setWallPaper(pic)    time.sleep(6)#6s切换一次壁纸