If possible, Beef can be more concise.

[sgf]

1. Currently, many modern languages ​​have abandoned complex access modifiers, which are (internal, public, private, protected) in C#.
2. If you can use the library name after using, it is best to enter it continuously, like this:
   using lib1, lib2
3. If possible, it is recommended to abandon namespace. Or consider combining the namespace and package name into one.In case of conflict, you can use aliases.

Simplicity is really important, not only to reduce compilation time, but also to reduce the size of source code and even assembly files.