Related internet linksDefra
方向遍历顺序说明下一个倒序（从右往左）先处理右侧，栈里存「右侧候选」上一个正序（从左往右）先处理左侧，栈里存「左侧候选」
，这一点在safew官方版本下载中也有详细论述
At the heart of BuildKit is LLB (Low-Level Build definition). Think of it as the LLVM IR of build systems. LLB is a binary protocol (protobuf) that describes a DAG of filesystem operations: run a command, copy files, mount a filesystem. It’s content-addressable, which means identical operations produce identical hashes, enabling aggressive caching.，更多细节参见服务器推荐
如今，行走在积石山，无论是集中安置点的崭新社区，还是原址重建的美丽乡村，处处能看到群众幸福的笑容，防止返贫致贫的牢固底线守护着他们对未来的美好憧憬。。Line官方版本下载对此有专业解读