func 関数名() {
処理
}
func showOK() {
print("ok")
}
func 関数名(仮引数: 仮引数の型) {
処理
}
func showMessage(message: String) {
print(message)
}
showMessage("Hello world!")
func showMessage(message: String, name: String) {
print(message + " from " + name)
}
showMessage("Hello world!", name: "Sasakky")
func showMessage(message: String, withName name: String) {
print(message + " from " + name)
}
showMessage("Hello world!", withName: "Sasakky")
func 関数名() -> 返り値の型 {
処理
}
func height() -> Int {
return 10
}
func multiply(val1: Int, by val2: Int) -> Int {
return val1 * val2
}