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<h2 id="cargo-自定义扩展命令"><a class="header" href="#cargo-自定义扩展命令">Cargo 自定义扩展命令</a></h2>
<blockquote>
<p><a href="https://github.com/rust-lang/book/blob/main/src/ch14-05-extending-cargo.md">ch14-05-extending-cargo.md</a>
<br>
commit c084bdd9ee328e7e774df19882ccc139532e53d8</p>
</blockquote>
<p>Cargo 的设计使得开发者可以通过新的子命令来对 Cargo 进行扩展，而无需修改 Cargo 本身。如果 <code>$PATH</code> 中有类似 <code>cargo-something</code> 的二进制文件，就可以通过 <code>cargo something</code> 来像 Cargo 子命令一样运行它。像这样的自定义命令也可以运行 <code>cargo --list</code> 来展示出来。能够通过 <code>cargo install</code> 向 Cargo 安装扩展并可以如内建 Cargo 工具那样运行它们是 Cargo 设计上的一个非常方便的优点！</p>
<h2 id="总结"><a class="header" href="#总结">总结</a></h2>
<p>通过 Cargo 和 <a href="https://crates.io/">crates.io</a><!-- ignore --> 来分享代码是使得 Rust 生态环境可以用于许多不同的任务的重要组成部分。Rust 的标准库是小而稳定的，不过 crate 易于分享和使用，并采用一个不同于语言自身的时间线来提供改进。不要羞于在 <a href="https://crates.io/">crates.io</a><!-- ignore --> 上共享对你有用的代码，因为它很有可能对别人也很有用！</p>
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