t_wの輪郭

enum Message {
    Quit,
    Move { x: i32, y: i32 },
    Write(String),
    ChangeColor(i32, i32, i32),
}

fn main() {
    let message = Message::Move{x:0, y:10};
    match message {
        Message::Quit => println!("Quit"),
        Message::Move {x,y} => println!("Move(x:{},y:{})", x, y),
        Message::Write (s) => println!("Write({})", s),
        Message::ChangeColor (r, g, b) => println!("ChangeColor({}, {}, {}", r, g, b),
    }
}