swift class

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

importCocoa

varstr ="Hello,playground"

classPerson {

age:Int;//类成员变量默认是public

name:String?;//?表示可以为nil或没有设置，name是可选的

init(age:Int,name:String){

self.age= age;

name= name;

}

funcgetAge()->Int{

returnage;

}

funcgetName()->String{

returnname!;//!表示可以返回nil

}

classfuncperson()->Person{

Person(age:30,name:"Xuhuiz");

}

funcmaxAge()->return200;

}

}

varv1 =1,27)">"zxh");

println("\(v1.age),.name)");

varv2 =Person.maxAge();

varv3 =person();

v3.age=29;

println(v3.getAge());