//元组
//1.使用元组保存信息
let infoTuple = ("why",18,1.08)
let tupleName = infoTuple.0
let tupleAge = infoTuple.1
print(tupleName.characters.count)

//写法二//别名
let infoTuple1 = (name:"why",age:18,height:1.08)

infoTuple1.name
infoTuple1.age

//写法三//最常见，推荐的元组写法
let(name,age,height) = ("why",1.08)
name
age
height