Swift

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog when we learn the language, we learn the data type of the language,SwiftWhat are the data types in? Integer, float, Boolean, character, string these types are certain,

Swift has excellent functional programming skills, and interviewers like to ask us for quick sorting when interviewing, so how do you make a quick order with Swift? First extend the array class:Array { var decompose : (head: T, tail: [T])? {

There are several common ways to add UIView Swift Func Insertsubview (View:uiview, Atindex index:int) func addsubview (view:uiview) func insertsubview (view: UIView, Belowsubview Siblingsubview:uiview) func insertsubview (View:uiview,

Swift provides a high-performance, Unicode-compatible string implementation as part of the standard library. In Swift2, the string type no longer adheres to the CollectionType protocol. Previously, the string type was a collection of characters,

Tip: If you use your phone and tablet to see this article, please read it in the WiFi environment, there are many pictures, it will waste a lot of traffic.Bo Master language has been bad (if there are any typos, please comment) hope you understand,

The uiview that are added in Swift are hierarchical.Let's add three first to take a look at Let View1=uiview (Frame:cgrectmake (Ten, A, $)) Let View2=uiview (Frame:cgrectmake () View3=uiview (Frame:cgrectmake, Max, max))

By default, the player comes with a variety of control buttons, such as forward and backward playback pauses, and so on:var url = nsbundle.mainbundle(). Urlforresource ("1", Withextension: "mp4")var play1 = Mpmovieplayerviewcontroller

Recently in the study of Swift, I used to write C #, then turned to OC, so I often complained about why OC is not generic. Now Swift is out, and it supports generics, but I can't help but have to spit out swift.The thing is, the data we do is

Generic type注：本文详细讲解泛型，对写一些公共方法，共用的东西的时候很有帮助。想成为一个优秀的程序员吗？这个必须掌握Generic code allows you to write functions and types that are flexible and reusable according to your own needs and that apply to any type.Here is a simple example, the generics are

Structs and enumerations are similar to comparable studies: http://blog.csdn.net/lwjok2007/article/details/47975415Structs are a custom type that is similar to enumerations but different from enumerations. Simply understand that a struct is a

Protocol, delegate (proxy) mode注：本小节总结协议以及依靠协议实现委托，这将在以后经常被使用。是一个非常重要的模块Look at the official definition: The protocol defines a blueprint that specifies the methods and properties necessary to implement a particular work or function, a class, struct,

Map,filter,reduce注：本文为作者自己总结，过于基础的就不再赘述 ，都是亲自测试的结果。如有错误或者遗漏的地方，欢迎指正，一起学习。关于Swift 中String 、数组 、字典的基本用法这里就不再赘述了，这些都很简单 不会的 在用得时候baidu下就行了。这里主要看下这几个高阶函数Mapmap方法，其获取一个闭包表达式作为其唯一参数。 数组中的每一个元素调用一次该闭包函数，并返回该元素所映射的值(也可以是不同类型的值)。

Title: Enter a sequence of two integers. One of the sequences represents the push order of the stack, judging whether another sequence is likely to be the corresponding pop order.For the sake of simplicity, we assume that any two integers of the

Func Makeincrementer()-(Int-Int){Func AddOne(Number:Int)-Int {          return 1 +  number     }     return addone }  var increment =  makeincrementer (  performed: Increment (7 Explanation: Increment is Makeincrementer (), So it returns AddOne

For beginners (like the author), closures are a difficult part of the swift language feature. Some of the reasons may lie in the fact that some people write complex functions very simply, and novices don't understand them. Closures can be

This study note is written for people with programming experience, because a lot of basic knowledge of the content is omitted, so please don't blame me for the beginners to write not detailed. Swift includes the following data types:1. int

Code:enumarithmeticexpression {//Related Values CaseNumber (Int)//Recursive enumerationIndirect Caseaddition (arithmeticexpression, arithmeticexpression) indirect Casemultiplication (arithmeticexpression, arithmeticexpression) indirect

appdelegate.swift//uiwindowimport uikit@uiapplicationmainclass Appdelegate:uiresponder, UIApplicationDelegate {var window:uiwindow? Func application (application:uiapplication, didfinishlaunchingwithoptions launchoptions: [Nsobject:anyobject]?)-

// Array/** Swift requires an array to be used normally have to meet two points* 1 , the array must be initialized, it can be assigned at initialization, or it can be directly [] represents an empty array** 2 , you must specify a data type that can

Posted on August 14, 2015One of the world's ongoing discussions about Swift is when to use structs when to use classes. I think I'm going to contribute some of my own ideas today.Value VS ReferenceThe answer is simple: when you need the value