フィボナッチ数の計算

fib.rs

fn fib(n:int) -> int{
    match n{
        0 | 1 => { 1 },
        _ => { fib(n-1) + fib(n-2) }
    }
}

fn main(){
    let mut n = 0;
    let max = 10;
    while n <= max{
        io::println(fmt!("fib(%2d) = %?", n, fib(n)));
        n = n + 1;
    }
}