. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 14.2. 将 crate 发布到 Crates.io . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rust 经常改进错误信息和警 告。也就是说，任何通过这些步骤安装的最新稳定版 Rust，都应该能正常运行本书中的内容。 命令行标记 本章和全书中，我们会展示一些在终端中使用的命令。所有需要输入到终端的行都以 $ 开头。你不需要输入 $ 字符；这里显示的 $ 字符表示命令行提示符，仅用于提示每 行命令的起点。不以 $ 起始的行通常展示前一个命令的输出。另外，PowerShell 专 用的示例会采用 target/release 下的可执行文件进行测试。 把 Cargo 当作习惯 对于简单项目，Cargo 并不比 rustc 提供了更多的优势，但随着程序变得更复杂，其价值会逐 渐显现。一旦程序壮大到由多个文件组成，亦或者是需要其他的依赖，让 Cargo 协调构建过 程就会简单得多。 即便 hello_cargo 项目十分简单，它现在也使用了很多在你之后的 Rust 生涯将会用到的实用 工具。其

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha- numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha- numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: LinearAlgebra.BLAS.gemv! – Function. gemv!(tA, alpha, A, x, beta, y) Update the vector y as alpha*A*x + beta*y or alpha*A'x + beta*y according to tA. alpha and beta are scalars. Return the updated y.