Function scan 

pub fn scan<T: FromStr>() -> T
where
    T::Err: Debug,

標準入力ストリームから値を読み込みます。

Examples

// You can have rust code between fences inside the comments
// If you pass --test to `rustdoc`, it will even test it for you!
use scantool::stdin::scan;
let n: i32 = scan();