import Foundation
 
class TV{
 
    //定义属性
 
    var price = 1999
 
    var name = "乐TV"
 
    //定义方法
 
    func open()->String{
        println("i am open hha")
        return "Success"
 
    }
 
    func open2(){
        println("shit");
    }
 
    func close()->Bool{
 
        return true
 
    }
 
}

import Foundation class TV{ //定义属性 var price = 1999 var name = "乐TV" //定义方法 func open()->String{ println("i am open hha") return "Success" } func open2(){ println("shit"); } func close()->Bool{ return true } }

var s = TV()
s.open()
 
 
带自动初始化
 
 
class User {
    var firstName: String
    var lastName: String
    var bio: String = "I ♡ Swift!"
 
    // no bio provided
    init(firstName: String, lastName: String) {
        self.firstName = firstName
        self.lastName = lastName
    }
 
    // bio provided
    init(firstName: String, lastName: String, bio: String) {
        self.firstName = firstName
        self.lastName = lastName
        self.bio = bio
    }
}
 
var me = User(firstName: "Andrei", lastName: "Puni")
// me = { firstName: "Andrei", lastName: "Puni", bio: "I ♡ Swift!"}
 
var silviu = User(firstName: "Silviu", lastName: "Pop", bio: "I f**ing ♡ Swift!!!")
// silviu = { firstName: "Silviu", lastName: "Pop", bio: "I f**ing ♡ Swift!!!"}

var s = TV() s.open() 带自动初始化 class User { var firstName: String var lastName: String var bio: String = "I ♡ Swift!" // no bio provided init(firstName: String, lastName: String) { self.firstName = firstName self.lastName = lastName } // bio provided init(firstName: String, lastName: String, bio: String) { self.firstName = firstName self.lastName = lastName self.bio = bio } } var me = User(firstName: "Andrei", lastName: "Puni") // me = { firstName: "Andrei", lastName: "Puni", bio: "I ♡ Swift!"} var silviu = User(firstName: "Silviu", lastName: "Pop", bio: "I f**ing ♡ Swift!!!") // silviu = { firstName: "Silviu", lastName: "Pop", bio: "I f**ing ♡ Swift!!!"}