# _*_ coding:UTF-8 _*_

 import requests,json,time,sys

 from contextlib import closing

 class get_photos(object):

     def __init__(self):

         self.photos_id = []

         self.download_server = 'https://unsplash.com/photos/xxx/download?force=true'

         self.target = 'https://unsplash.com/napi/feeds/home'

         self.headers = {'authorization': 'Client-ID c94869b36aa272dd62dfaeefed769d4115fb3189a9d1ec88ed457207747be626'}

     #获取图片ID

     def get_ids(self):

         req = requests.get(url = self.target,headers = self.headers,verify = False)

         html = json.loads(req.text)

         next_page = html['next_page']

         print(next_page)

         for each in html['photos']:

             self.photos_id.append(each['id'])

         time.sleep(1)

         for i in range(4):

             req = requests.get(url = next_page,headers = self.headers,verify = False)

             html = json.loads(req.text)

             next_page = html['next_page']

             for each in html['photos']:

                 self.photos_id.append(each['id'])

             time.sleep(1)

     #图片下载

     def download(self,photo_id,filename):

         headers = {'User-Agent':' Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'}

         target = self.download_server.replace('xxx',photo_id)

         with closing(requests.get(url = target,stream = True,verify = False,headers = self.headers)) as r:

             with open('%d.jpg'%filename,'ab+') as f:

                 for chunk in r.iter_content(chunk_size = 1024):

                     if chunk:

                         f.write(chunk)

                         f.flush()

 if __name__ == '__main__':

     gp = get_photos()

     print('获取图片链接中：')

     gp.get_ids()

     print('图片下载中：')

     for i in range(len(gp.photos_id)):

         print('正在下载第%d张图片'%(i+1))

         gp.download(gp.photos_id[i],(i+1))