swift学习之路（十一）函数

import Foundation

func sayHello(name:String,age:Int)->String{

    return name

}

print(sayHello("xiangru",age: 30))//单个返回值

func temp(name:String,age:Int)->(String,Int){

    return (name,age)

}

print(temp("adrian", age: 30).1)//多个返回值

func Name(name:String...){

    for value in name{

        print(value)

    }

}

Name("zack","sundy","jack","join")//多个参数

func Student(name UserName: String,age:Int )->String{

    return "\(UserName) \(age)"

}

print(Student(name: "adrian", age: 30))//外部参数

var name:String = "adrian"

func test(inout name:String)->String{

    name = name + "AAA"

    return name

}

print(test(&name))//实参