目录一、核心原理二、服务端实现1. 分片下载接口2. 断点续传支持三、客户端实现（JavaScript示例）四、关键优化点五、测试方案六、扩展场景在Spri
i want to develop a nice thing that will be on the desktop (like an active desktop) something like this:
加载中,请稍侯......