swift版的元组

 

说明

元组的内容并不多,使用的话跟普通变量类似,以下是测试源码:

////  ViewController.swift//  Tuples////  Created by YouXianMing on 15/10/12.//import UIKitclass ViewController: UIViewController {    var tuplesValues : (duration : NSTimeInterval, animated : Bool)?        override func viewDidLoad() {                super.viewDidLoad()                unnamedTuples()                namedTuples()                tuplesValues = (duration : 10, animated : true)        if let _ = tuplesValues {                    print(tuplesValues!.duration)            print(tuplesValues!.animated)                    } else {                }    }        // Unnamed Tuples    func unnamedTuples() {            let tipAndTotalOne = (4.00, 25.19)        let tipAndTotalTwo : (Double, Double) = (4.00, 25.19)                print(tipAndTotalOne)        print(tipAndTotalTwo)    }        // Named Tuples    func namedTuples() {            let tipAndTotalNamedOne = (tipAmt : 4.00, total : 25.19)        print("\(tipAndTotalNamedOne.tipAmt) + \(tipAndTotalNamedOne.total)")                let tipAndTotalNamedTwo : (tipAmt : Double, total : Double) = (4.00, 25.19)        print("\(tipAndTotalNamedTwo.tipAmt) + \(tipAndTotalNamedTwo.total)")    }        // Returning Tuples    func calcTipWithTipPct(tipPct:Double) -> (tipAmt : Double, total : Double) {                let tipAmt     = tipPct * 6        let finalTotal = tipAmt * 0.56                return (tipAmt, finalTotal)    }        // animationOptionsWith    func animationOptionsWith(duration : NSTimeInterval, animated : Bool) {        }}

 

细节