- doc1: https://kaisery.github.io/trpl-zh-cn/title-page.html
- doc2: https://rust.bootcss.com/title-page.html
- http://shouce.jb51.net/rust-book-chinese/index.html
- The Rust Programming Language: https://github.com/rust-lang/book
- https://doc.rust-lang.org/book/