swift 斯威夫特の关数

Posted 2021-05-19

//関数名(ラベル名 引数名:型, ...) -> 戻り値の型
func areaOfSquare(withBase base:Int, height height:Int) -> Int {
    let result = base * height;
    return result
}

//関数名(ラベル名: 引数, ...)
var area = areaOfSquare(withBase: 3, height: 3)
print(area)