老范的自言自语 Walter's Solo

rust first step

August 12, 2024 by walter

installation

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Cargo

Cargo: the Rust build tool and package manager
When you install Rustup you’ll also get the latest stable version of the Rust build tool and package manager, also known as Cargo. Cargo does lots of things:

• build your project with cargo build
• run your project with cargo run
• test your project with cargo test
• build documentation for your project with cargo doc
• publish a library to crates.io with cargo publish

To test that you have Rust and Cargo installed, you can run this in your terminal of choice:

cargo --version

Example

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

• build

$ rustc main.rs
$ ./main
Hello, world!

or

cargo new hello_cargo
cd hello_cargo
cargo build
cargo run

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