. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552 22.4. D - 实用开发工具 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 最后的附录包含了一些关于该语言的实用信息，其格式更像是参考资料。附录 A 涵盖了 Rust 的关键字，附录 B 涵盖了 Rust 的运算符和符号，附录 C 涵盖了标准库提供的可派生 trait，附 录 D 涵盖了一些有用的开发工具，而附录 E 解释了 Rust 版本。在附录 F 中，你可以找到本书 的翻译版本，而在附录 G 中，我们将讨论 Rust 是如何制作的以及什么是 nightly Rust。 行，请尽管使用你喜欢的 IDE。目前很多 IDE 都在一定程度上支持 Rust；查看 IDE 文档以了解更多细节。Rust 团队一直致力于借助 rust-analyzer 提供强大的 IDE 支 持。详见附录 D。 创建项目目录 首先创建一个存放 Rust 代码的目录。Rust 并不关心代码的存放位置，不过对于本书的练习和 项目来说，我们建议你在 home 目录中创建 projects 目录，并将你的所有项目存放在这里。

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 3.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 3.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

|\__'_|_|_|\__'_| | Commit 925d504ade4 (1 day old master) |__/ | julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit() operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this

| julia> 1 + 2 3 julia> ans 3 To exit the interactive session, type CTRL-D (press the Control/^ key together with the d key), or type exit(). When run in interactive mode, julia displays a banner operator ⋅ (U+22C5). The minus sign − (U+2212) is treated as equivalent to the hyphen-minus sign - (U+002D). 4.2 Assignment expressions and assignment versus mutation An assignment variable = value "binds" online. • For a brief but lucid presentation of how floating-point numbers are represented, see John D. Cook's article on the subject as well as his introduction to some of the issues arising from how this