这本书主要描述了Rust的基本语法。

Foreword 前言

It wasn't always so clear, but the Rust programming language is fundamentally
about empowerment: no matter what kind of code you are writing now, Rust empowers
you to reach farther, to program with confidence in a wider variety of domains
than you did before.
译：有一点需要澄清，那就是Rust语言从根本上讲是关于"赋能"的：无论你现在使用的是哪种语言，Rust都能让你走得更远，让你在比以前更广泛的领域中自信地编码。