视频讲解 [分析完Glide源码再到手写Glide，搞清楚3个步骤就行](https://www.bilibili.com/video/BV14v41167z8?from=search&seid=14689325892199438966) [Glide源码](https://www.bilibili.com/video/BV1yJ411b71R?from=search&seid=14689325892199438966)