Rust Learning Record (Nightly)

2.1 Installation

$ curl-l https:///static.rust-lang.org/rustup.sh | sudo sh

2.2 Hello, world!

Create a project

$ mkdir ~/~/projects$ mkdir hello_world$ cd Hello_world

Create main.rs, current directory structure

projects/└──hello_world    └──main.rs

Writing code

fn Main () {    println! ( " Hello, world!. " );  }

Compiling main.rs in the terminal

$ RUSTC main.rs    //  compile

And now our engineering catalogue has become

projects/└──hello_world    ├──main    //  executable file    └──main.rs

Execute main, you can see the output of "Hello, world!."

// run the generated main execution file // output of Hello, world!

println! () is a macro of Rust, so long as it sees an exclamation mark, it is a macro that replaces the normal function.

2.3 cargo!

Cargo is a tool to help manage Rust projects.

Enter your project directory, create the SRC folder, and move the previous main.rs to the folder

$ mkdir src$ mv main.rs src/main.rs

Create a CARGO.TOML file

[Package]//Package section tells the Cargo program information (meta data)name="Hello_world"version="0.0.1"authors= ["Your name <[email protected]>"][[bin]]//tell Cargo to generate a binary executable filename="Hello_world"    //the name of the executable file

Execute the compile command to run the compiled executable file

$ Cargo Build    //  Compile code file   compiling Hello_world v0.  0.1 (file://Home/yourname/projects/hello_world)$./target/hello_world    //  Run the generated executable Hello, world!    // the output information

Current Project Catalog

projects/└──hello_world    ├──cargo. Lock     ├──cargo.toml    ├──main    //  Previous executable file generated with RUSTC     ├──src    │└── Main.rs    └──target    //  Execute the cargo build command after the generated folder         ├──build        ├── Deps        ├──examples        ├──hello_world    //  and main executable file        └──native

Rust Learning Record (Nightly)