Introduction to Rust

👉 Rust website

The installation

The following is based on MAC 👉Windows and other installations

Rust installer and package management tool

Curl –proto ‘= HTTPS ‘– tlsv1.2-ssf
https://sh.rustup.rs | sh


👆 Failed to execute the command. Go to 👇 to install the image


export RUSTUP_DIST_SERVER=
https://mirrors.ustc.edu.cn/r…


export RUSTUP_UPDATE_ROOT=
https://mirrors.ustc.edu.cn/r…


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


The results are as follows 👇 

~ ➤ 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. Rustup metadata and toolchains will be installed into the Rustup home directory, located at: ... You can uninstall at any time with rustup self uninstall and these changes will be reverted. Current installation options: default host triple: x86_64-apple-darwin default toolchain: stable (default) profile: default modify PATH variable: yes 1) Proceed with installation (default) 2) Customize installation 3) Cancel installation

Select input 1 for stable version 👇 appear the following code is complete

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

Then run 👇 to save the configuration

source $HOME/.cargo/env

update

rustup update

Cargo Rust’s build tool and package manager

Cargo Run // Cargo test // Cargo doc // Cargo publish // Cargo run // Cargo test // Cargo doc // Cargo publish // Crates. IO. Cargo --version // To check if you have Rust and cargo installed

Start a project

Create a project

cargo new hello-rust 

Hello - rust | - Cargo. Toml / / rust manifest file. Contains the project metadata and dependent libraries | - SRC | - main. Rs / / write application code

Run the project

cargo run 

Compiling hello-rust v0.1.0 (/Users/ag_dubs/rust/hello-rust)
    Finished dev [unoptimized + debuginfo] target(s) in 1.34s
     Running `target/debug/hello-rust`
Hello, world!

Add the dependent

👉rust warehouse Cargo. Toml under [dependencies] add dependencies

[dependencies] - says = "0.2"

Cargo build // Install dependencies


Running this command creates a new file, Cargo. Lock, that records the exact version of the dependency libraries used locally

If a dependency fails to be installed, you can configure an image

CD ~/. Cargo // Enter the cargo root directory,
See Resources for Windows


Cat > config // To create a config file, enter 👇 code directly 

[source.crates-io]
registry = "https://github.com/rust-lang/crates.io-index"
replace-with = 'ustc'
[source.ustc]
registry = "git://mirrors.ustc.edu.cn/crates.io-index"

Press Ctrl + D to save


After that, it is ok to execute cargo build again

Use a dependency

Delete the code from main.rs and write the code 👇

use ferris_says::say; // You can use the say function from Ferris-says Crate

Creating an application

main.rs

use ferris_says::say; // from the previous step use std::io::{stdout, BufWriter}; fn main() { let stdout = stdout(); let message = String::from("Hello fellow Rustaceans!" ); let width = message.chars().count(); let mut writer = BufWriter::new(stdout.lock()); say(message.as_bytes(), width, &mut writer).unwrap(); }

cargo run


The resources

Rust install the Mac-cargo image. Configure the Windows-cargo image