添加了对媒体资源服务器的异常处理，参见 issue #691

media_platform/weibo/core.py

@@ -250,6 +250,7 @@ class WeiboCrawler(AbstractCrawler):
             if not url:
                 continue
             content = await self.wb_client.get_note_image(url)
+            await asyncio.sleep(random.random())
             if content != None:
                 extension_file_name = url.split(".")[-1]
                 await weibo_store.update_weibo_note_image(pic["pid"], content, extension_file_name)