15.swift-func函数基础

//: Playground - noun: a place where people can play

import UIKit

/*
 1.无参无返
 */
func addd(){
    
}
/*
 2.无参有返
 */
func adddd()->Int{
    return 0;
}
/*
 3.有参无返
 */
func adddddd(one:String,two:Int){
    
}
/*
 4.有参有返
 func 函数名(参数:参数类型)->返回值类型{
 returen 返回值;
 }
 */
func add(one:Int,two:String)-> Int{
    return 0;
}

//5.多返回值的函数
func sum(one:Int,two:String)-> (main:Int,str:String){
    return (2,"2");
}
sum(one: 1, two: "1");