Rust-Book Getting Started

从零开始学习Rust。

1. Rust的安装

略。

2. Rust版Hello World

fn main() {
    println!("hello world");
}

main函数是程序入口。println!中的!表示这是一个宏。

This is calling a Rust macro, which is how metaprogramming is done in Rust.

3. Cargo

Cargo is a tool that Rustaceans use to help manage their Rust projects.

Cargo manages three things: 1. building your code, 2. downloading the dependencies your code needs, 3. building those dependencies.

类似于Maven?

构建脚本文件名：Cargo.toml。语法参考：toml-lang/toml。

命令：cargo build, cargo run, cargo new xxx(创建新项目, 会自动创建git仓库(.git和.gitignore))。

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