李明的博客

首先是官网：http://socket.io/ 这个大家都不会陌生吧~~1、官方推荐的Android项目：http://socket.io/blog/native-socket-io-and-android/      github上的相应地址为：https://github.com/nkzawa/socket.io-android-chat2、官方

import Foundation//生成随机数（十位数）然后求余var randoma = arc4random();print(randoma)//1...50的随机数var randomb = randoma % 50print(randomb)if randomb == 0 {    print("The num is 50")} else {    print("The num is \...

代码：import Foundationclass Food {    var meat:String {        return "pork"    }    class var str: String {        return "Str"    }}class Dinner: Food {//override 属性    override var meat: String {    ...

代码：//重写类方法class A {    func printStr(){        print("This is Str")    }}class B: A {    override func printStr() {        print("This is not Str")    }}let bvalue = B()bvalue.printStr()输出：This is not...

一.整型1. 和C语言，java等有所不同，Swift中的整型没有short，Long，只有Int类型。2. Int8:表示在内存里通常占8位，数值范围是：-128～ 127   Int16:表示在内存里通常占16位，数值是：-32768～ 32767   Int32:表示在内存里通常占32位，数值是：-2147483648～ 2147483647   Int16:表示在内存里通常占16位，数值是...

代码：import Foundationclass Person{    var residence: Residence?}class Residence {    var city:String = "Shanghai"}let litao = Person()if let cityname = litao.residence?.city {    print("City is: \(city...

import Foundationlet seta:Set = ["China","USA","India"]let checkValue = seta.contains("USA")if(checkValue){    print("It has USA")} else {    print("It does not has USA")}let checkValueTwo = seta.

//插入一个值到set中去var setc:Set = ["Apple","Orange","WaterMelon","Lemon"]setc.insert("Grape")print(setc.insert("Pear"))print(setc)//在set中删除一个值var setd:Set = [1,2,3,4,5,6]//remove one of setlet removedse

import Foundation//字典//定义不可变字典let dicta:[Int:String] = [1:"China",2:"Japan",3:"USA"]if let dictavalue = dicta[3] { print(dictavalue)}//定义可变字典var dictb:[String:String] = ["classa":"23","c.

import Foundation//Swift中的遍历//遍历字符串let str = "Good Night!"for i in str {    print(i)}//遍历数组let arr = ["China","Japan","USA","German"]for j in arr {    print(j)}//遍历数组的索引值和值for (k,v) in arr.enumerated(...

标签表明循环的是归属哪一段import Foundation// break from a loopvar i = 0loopa: while(i < 100) {    switch(i) {    case 1...10:        print("This is between 1 to 10")    case 11...20:        print("This is betw...

代码：import Foundation//Swift中的可变参数的应用var total:Double = 0.0func avg(numbers:Double...) -> Double {    for number in numbers {        total = total + number    }    return total}print(avg(numbers: 3....

代码：import Foundation//常量参数和变量参数func aligRight(string: String, cont:Int, pad:String){    var string = string   //变量参数    let sc = string.count    let padcount = cont - sc    for _ in 0...padcount {    ...

使用代码：import Foundationclass StepCount{    var totalSteps : Int = 0 {        willSet(newTotalSteps){            print("新的值为:\(newTotalSteps)")        }        didSet(old){            if(totalSteps >...

代码：import Foundation//Swift中的计算属性//Setter and Getter//get {//    return someValue//}//set{//   setSomeValue//}class WalletClass {    var money = 0.0    var cal: Double {        get {            let RM...

import Foundationprint("Hello, World!")let tom = Person(name:"Tom", age:20)print(tom.name)//tom.walktom.walk()tom.sleep(sleeptime: 36000)let tomdes = tom.tech(a: "China", b: "Japan", c: 900)print(tomd...

iOS6和iOS7在隐藏 Status Bar 三种方式比较:Storyboard界面上选中UIViewController,最右边Simulated Metrics找到 Status Bar 设定成 NoneViewControlleriOS 6通过[UIApplication sharedApplication] 取得app的单例，然后调用setStatusBa

import UIKitclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib.

在Info.plist中去掉下面的两项在Target里面去掉 Portrait项

Swift3.01，按钮的创建（1）按钮有下面四种类型：UIButtonType.system：前面不带图标，默认文字颜色为蓝色，有触摸时的高亮效果UIButtonType.custom：定制按钮，前面不带图标，默认文字颜色为白色，无触摸时的高亮效果UIButtonType.contactAdd：前面带“+”图标按钮，默认文字颜色为蓝色，有触摸时的高亮效果UIButtonType.detailDi...

Comparable 有两个先决条件： 类型要满足Equatable protocol和使用struct Employee: Equatable,Comparable { var firstname: String var lastname: String var title: String //相同实例的先决条件 static func =

使用playground来测试存储数据和读取数据， 使用的是访问本地目录。//: Playground - noun: a place where people can playimport UIKitimport Foundation//var str = "Hello, pl

下面是实现 Share ／Safari ／Camera 过程import UIKitimport SafariServicesimport MessageUIclass ViewController:UIViewController, UIImagePickerControllerDelegate,UINavigationContro

iOS开发中静态库之".a静态库"的制作及使用篇一.库的简介1.什么是库?库是程序代码的集合,是共享程序代码的一种方式2.库的类型?根据源代码的公开情况,库可以分为2种类型开源库公开源代码,能看到具体实现如SDWebImage, AFNetworking闭源库不公开源代码,是经过编译后的二进制文件,看不到具体实现主要分为: 静态库,动态库

var playerTimer:Timer!创建计时器self.playerTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector:#selector(revoleStart), userInfo: nil, repeats: true);启动计时器self.p

经三次测试DispatchQueue中的class优先级顺序是 :background default unspecified import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        s

代码：import Foundationfunc swapTwoInts(a: inout Int, _ b: inout Int){    let temp = a    a = b    b = temp}var intA = 3var intB = 5print("int A is: \(intA), and int B is \(intB)")swapTwoInts(a: &int...

代码：import Foundationprint("Hello, World!")class SomeClass { var str = "Hello" //需要先类实例化，才能调用 func printHello(){ for character in str { print("The value is :\(charac...