�を開く</li>
<li>「Hello, world!」プログラムを書き、<code>rustc</code>を直接使って実行する</li>
<li>Cargoにおける習慣に従った新しいプロジェクトを作成し、実行する</li>
</ul>
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This is a great time to build a more substantial program to get used to reading
and writing Rust code. So, in Chapter 2, we’ll build a guessing game program.
If you would rather start by learning how common programming concepts work in
Rust, see Chapter 3 and then return to Chapt