Rust 是否允许 lib/mod.rs 代替 lib.rs？

Question

Considering I have lib.rs and main.rs :
is it possible to create a lib/ folder, to hold and separate the subfolders from src/ ,
and use lib/ + lib.rs or lib/mod.rs to reference the submodules?

Answer 1

Library main file can be placed anywhere and have an arbitrary name, there's a cargo config section for that:

[lib]
path = "src/lib/mod.rs" # by default it is src/lib.rs

However, I would suggest to look at workspaces , it might be a better fit for you.