curl https://sh.rustup.rs -sSf | sh

info: downloading installer

Welcome to Rust!

This will download and install the official compiler for the Rust programming

language, and its package manager, Cargo.

It will add the cargo, rustc, rustup and other commands to Cargo's bin

directory, located at:

  /root/.cargo/bin

This path will then be added to your PATH environment variable by modifying the

profile files located at:

  /root/.profile

  /root/.bash_profile

You can uninstall at any time with rustup self uninstall and these changes will

be reverted.

Current installation options:

   default host triple: x86_64-unknown-linux-gnu

     default toolchain: stable

  modify PATH variable: yes

) Proceed with installation (default)

) Customize installation

) Cancel installation

Current installation options:

   default host triple: x86_64-unknown-linux-gnu

     default toolchain: stable

  modify PATH variable: yes

) Proceed with installation (default)

) Customize installation

) Cancel installation

>

info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'

334.4 KiB / 334.4 KiB ( %) 191.0 KiB/s ETA:    s

info: latest update on --, rust version 1.34. (6c2484dc3 --)

info: downloading component 'rustc'

 85.3 MiB /  85.3 MiB ( %) 172.7 KiB/s ETA:    s

info: downloading component 'rust-std'

 56.1 MiB /  56.1 MiB ( %) 182.4 KiB/s ETA:    s

info: downloading component 'cargo'

  4.3 MiB /   4.3 MiB ( %) 188.8 KiB/s ETA:    s

info: downloading component 'rust-docs'

 10.2 MiB /  10.2 MiB ( %) 169.4 KiB/s ETA:    s

info: installing component 'rustc'

 85.3 MiB /  85.3 MiB ( %)  12.8 MiB/s ETA:    s

info: installing component 'rust-std'

 56.1 MiB /  56.1 MiB ( %)  13.3 MiB/s ETA:    s

info: installing component 'cargo'

info: installing component 'rust-docs'

 10.2 MiB /  10.2 MiB ( %)   1.2 MiB/s ETA:    s

info: default toolchain set to 'stable'

  stable installed - rustc 1.34. (6c2484dc3 --)

Rust is installed now. Great!

To get started you need Cargo's bin directory ($HOME/.cargo/bin) in your PATH

environment variable. Next time you log in this will be done automatically.

To configure your current shell run source $HOME/.cargo/env

rustup self uninstall

第一个Rust程序

依据惯例，打印hello,world

编辑创建文件main.rs

fn main() {

    println!("Hello, world!");

}

编译（类似于C语言的gcc编译）：

rustc  main.rs

运行：

./main

输出：

Hello, world!