2020年10月，正在广东考察的习近平总书记登上广济楼，远眺凝思。
With normal Smalltalk code, I would explore the system using senders, implementors, inspectors— gradually rebuilding my understanding. Here, that breaks down. The matching syntax lives inside strings, invisible to standard navigation tools. No code completion. No refactorings. No help from the environment.
，这一点在safew官方下载中也有详细论述
The new API in action
Sync/async separation