Swift

1: First MultithreadingFunc fun1 () {For I in 200...300{NSLog ("%d", I);}}Func fun2 () {For I in 300...400{NSLog ("%d", I);}}var Th1 = Nsthread (target:self,selector: "Fun1", Object:nil);Th1.start ();Open ThreadNsthread.detachnewthreadselector ("Fun2

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Override func viewdidload () {super. viewdidload () var swiperight = uiswipegesturerecognizer (target: Self, Action: "respondtoswipegesture:") swiperight. direction = uiswipegesturerecognizerdirection. right self. view. addgesturerecognizer

I am not very familiar with objective-C, and I have never used uikit before. spritekit only read the tutorials and then read the swift language tutorials. At this time, I started to write this program, therefore, the problem is solved by pediatrics,

Classes and struct in SWIFT have many things in common. The common cause is: ? Define attributes for storing values ? Define a method to provide functions ? Define subscript for accessing values through subscript syntax ? Defines the initialization

  In this section, let's take a look at the principles of the random length pedaling platform.Key points: Platform Our platform class inherits from sknode, so that it can be added to other nodes and displayed in the scene. It has a method to create

Attribute associates a value with a specific class, structure, or enumeration. Store attributes to store constants or variables as part of an instance, and calculate (rather than store) a value. Computing attributes can be used in classes, struct,

1. Use let to declare constants and VaR to declare variables. Note: You can declare multiple constants or variables in a row and separate them with commas. 2. If the initial value does not provide enough information (or there is no initial value),

Swift uses process control statements in the same C language, such as if, for, for-in, while, do-while, switch, break, and continue. the switch statement of swift language automatically adds the break effect, so that you do not need to write break

SWIFT is Apple's latest language used to write iOS and OS X programs. It is compatible with C and objective-C. Some examples in this series of articles are from Apple's official guide: the swift programming language. If you are interested, you can

Today, I wrote a simple tableview using SWIFT. the syntax and usage are not much different from those of OC. But pay attention to the details. Code first import UIKitclass ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {

One class can inherit the methods, properties, and other features of the other class. When a class inherits other classes, the inherited class is called subclass, And the inherited class is called superclass (or parent class, superclass ). In swift,

  In the previous section, we wrote something about the crazy platform. The so-called god will first make it crazy to make it perish. Crazy is not a good thing, so we need to take some measures, such as removing platforms other than scenes. If one

In oC, we use -(Cardmatchinggame *) Game {If (! _ Game) _ game = [[cardmatchinggame alloc] initwithcardcount: [self. cardbuttons count] usingdeck: [self createdeck]; return _ game ;} Method To implement lazy initialize, that is, the object is

String is an ordered Character Set combination, such as "Hello, world", "Albatross ". The swift string is represented by the string type or a set of character type values.Swift's string and character types provide a fast and Unicode-compatible way

Operators are special symbols or phrases for checking, changing, and merging values. For example, the plus sign + adds two numbers (for example, let I = 1 + 2 ). Complex operations such as logic and operators & (for example, if entereddoorcode &

1: The class and struct definition classes and struct are defined by the keywords class and struct respectively. The swift encoding style is the Hungary notation in which the class and struct names start with an uppercase letter. The opposite is

The string type of SWIFT is the value type. If you create a new string value, the value will be copied when it is used to assign values to constants or variables, or when it is passed in functions/methods. In different cases, a new copy of an

This document describes the variables, data types, and cycles of the SWIFT language. 1. Constant variable VaR myvariable = 42 // variableMyvariable = 50Let myconstant = 42 // constant 2. Indicate the variable type. Let explicitdouble: Double = 70 3

Outputting "helloworld" from the console is the first step in C language learning and a very important step in my life. Today, many years later, I still hope to use helloworld as the first step to start a magical and magnificent world-Swift