iOS开发----Swift猜数字游戏.

AppDelegate.swift 文件代码如下：

import UIKit

@UIApplicationMain

class AppDelegate:UIResponder, UIApplicationDelegate {

                            

   var window: UIWindow?

    

   var tsLabel: UILabel?

    

   var number: UInt32 =0

    

   func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

       self.window =UIWindow(frame: UIScreen.mainScreen().bounds)

        // Override point for customization after application launch.

       self.window!.backgroundColor =UIColor.whiteColor()

        

        self.window!.makeKeyAndVisible()

        

       var num: UInt32 =arc4random();

       number = num%100 +1

    

       &nb