deca/content/blog/hello-world.md

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2023-10-10 19:40:07 +00:00
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title = "Hello World"
description = "Introducing Doks, a Hugo theme helping you build modern documentation websites that are secure, fast, and SEO-ready — by default."
date = 2021-05-01T09:19:42+00:00
updated = 2021-05-01T09:19:42+00:00
draft = false
template = "blog/page.html"
[taxonomies]
authors = ["Rustaceans"]
[extra]
lead = "This is the source code of the traditional <b>Hello World</b> program."
+++
```rust
// This is a comment, and is ignored by the compiler
// This is the main function
fn main() {
// Statements here are executed when the compiled binary is called
// Print text to the console
println!("Hello World!");
}
```
`println!` is a macro that prints text to the console.
A binary can be generated using the Rust compiler: `rustc`.
```bash
$ rustc hello.rs
```
`rustc` will produce a `hello` binary that can be executed.
```bash
$ ./hello
Hello World!
```