some new language features need new compiler or runtime support
such as abstract static members in interface.

you can think of them as evolving together.

Generally, requirements drive language/API, then drive runtime/lib implementation.

【 在 ustcBoy 的大作中提到: 】
: c#10包括了对.net6新功能的调用实现，和旧版本平台语法的新语法糖？
: 不知道这样想对不
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