直接将 API 地址作为图片链接即可，每次调用会缓存 10 秒。
Use the API URL directly as an image link. It will be cached for 10 seconds.
所有图片接口及json限制每秒 2 访问，多了拉黑 1h
All image and JSON interfaces are limited to 2 requests per second. Exceeding will result in 1h block.
https://api.furry.ist/furry-img/