Hundreds of companies around the world are using Rust in production today for fast, low-resource, cross-platform solutions. Software you know and love, like Firefox, Dropbox, and Cloudflare, uses Rust. From startups to large corporations, from embedded devices to scalable web services, Rust is a great fit.

Affectionately nicknamed “the book,” The Rust Programming Language will give you an overview of the language from first principles. You’ll build a few projects along the way, and by the end, you’ll have a solid grasp of the language.

This appendix contains a glossary of Rust’s syntax, including operators and other symbols that appear by themselves or in the context of paths, generics, trait bounds, macros, attributes, comments, tuples, and brackets.

Chapter 1 explains how to install Rust, how to write a “Hello, world!” program, and how to use Cargo, Rust’s package manager and build tool. Chapter 2 is a hands-on introduction to writing a program in Rust, having you build up a number guessing game.

You can try Rust online in the Rust Playground without installing anything on your computer. Try Rust without installing Rustup: the Rust installer and version management tool

Note: rustc currently recognizes the tools “clippy”, “rustfmt”, “diagnostic”, “miri” and “rust_analyzer”. Built-in attributes index [attributes.builtin]

2020年1月24日 · Part of Rust by Example covers this in depth. To summarize, these are called lifetimes. fn foo<'a>(/**/); // ^-- Lifetime. We use these to express constraints on the lifetimes of objects.

Rust by Example (RBE) is a collection of runnable examples that illustrate various Rust concepts and standard libraries.

Rust takes a different path: the memory is automatically returned once the variable that owns it goes out of scope. Here’s a version of our scope example from Listing 4-1 using a String instead of a string literal:

Rust’s focus is on ensuring safety and efficiency while also providing high-level affordances, while Go’s is on being a small, simple language which compiles quickly and can work nicely with a variety of tools. Rust has strong support for generics, which Go does not.