[Rust] module demo

mod english {
    pub fn hello(name: &str) {
        println!("Hello, {}", name);
    }
}

mod chinese {
    pub fn hello(name: &str) {
        println!("你好，{}", name);
    }
}

fn main() {
    // Call modules
    use english;
    use chinese;

    // Call two functions with the same name
    english::hello("Michael");
    chinese::hello("麥可");
}