Swift typealias

typealias：給予形態一個別名，類似C的struct的alias

//
//  main.swift
//  test
//
//  Created by CYFang on 6/6/14.
//  Copyright (c) 2014 CYFang. All rights reserved.
//


//類似C的struct的alias
typealias CYString = String

var cy:CYString = "C.Y. Fang"

println(cy)
println(cy.uppercaseString)

執行成果：