color swift

find some of Apple Swift Chinese and English resources in the original link, I hope to be helpful to everyone. Welcome to add, the original resources link best! The Swift programming Languagehttps://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Welcome to SwiftHttps://developer.apple.com/library/prerelease/io

[Swift] Day02: a string in Swift, a string in swiftday02Introduction StringThe string in is of the value type, and the value will be copied during transmission.NSStringIs referenced. We can usefor inTraverse string: var a : String = “a”for c in “Hello” { println(c)} You can usecountElementsCalculate the number of characters in a string: countElements(“1234567”) // 7 However, note that,countElementsAnd NS

Swift variable and constant, Swift variable Apple launched swift for a while, and a lot of information appeared on the Internet. Thank you very much. The Swift syntax differs greatly from the OC syntax. In the OC, we create a class and generate a class at the same time. h file and one. m file, but only one in

English version of PDFhttp://download.csdn.net/detail/tsingheng/7480427I was supposed to do Java. But there is a toss heart, Apple announced swift after the download of Apple's development documents. Chew for a few days. Hazy to see a nearly the same, want to calm down to see whether the whole translation out. My English is generally like, just basically can see the definite meaning, very many adjectives do not know how to say. I hope the great God wi

Material: Language GuideFirst contact with Swift, it is recommended to look at A Swift Tour, otherwise the thought conversion will be very laborious, easy to die or dead.The same is true for each chapter that summarizes only 3 of the points that you think are most important. That's good! Force you to think and choose. Later, it is also convenient to quickly reconstruct memory.Note: Personal notes are for in

　Does Swift Bic have the same difference as swift code? From the name of the two is only the difference between BIC and code. Swift code is the meaning of "Bank identification Code", which is ISO 9362, which is often also called swift-bic or BIC code or Swift ID. It is eas

Swift 2.0 Study Notes (Day 3 )--Swift 2.0 after the added keywordRead the previous study notes.What are the keywords that are now prompting you inSwift 2.0then addDefer,Guard,Repeat,Catch,Rethrows,Throw,Throwsand theTrykeyword, whereRepeatkeyword substitutionDo-whilein the LoopDo, that is, theRepeat-whileloops. andDokeyword is used for error handling. Catch,Rethrows,Throw,Throwsand theTryis the error-hand

Swift calls C, C + +, Object1.Swift calling C languageA, first add the CFile file in the project named Chello, and generate the bridge file.b, after the creation of the project structureb, write the interface method in the CHello.h file, write the implementation method in CHELLO.C, and finally introduce the CHello.h in the Swiftcallc-bridging-header.h file.CHello.h file#ifndef __swiftcallc__chello__#define

Swift explanation 14: swift explanationNSThread asynchronous download of images There are three solutions for processing multithreading in IOS: NSThread, NSOperation, and GCD. Of course, GCD should be the most convenient. We should learn it one by one. First understand the underlying layer, and finally use the most convenient. NSThread:Advantage: NSThread is lighter than the other twoDisadvantage: You need

Swift 2.0 Study Notes (Day 9) -- leave the expression and try again !, Swift Study Notes Swift 2.0 Study Notes (Day 9) -- leave the expression and try again! For Original Articles, please reprint them. Reprinted Please note: Guan Dongsheng's blog Expressions are very important. In Swift, there are three forms of

Analysis process of the Swift programming language and the swift programming language process The Destructor is called immediately before a class instance is released. Deinit is used to indicate the destructor, similar to the initialization function. The Destructor only applies to the class type. Analysis Process Principle Swift Automatically releases instances

Swift difficulties-detailed explanation of the constructor rule instances in inheritance, swift difficultiesConstructing Rules in inheritance is a challenge. If you have any questions, please leave a message to ask me.My Swift getting started tutorial ColumnWhy is there a constructor: assign an initial value to the class itself and the inherited storage attribute

[Swift-Summary] basic usage, swift-summary basisDeclare variables and constants // Use var to declare a variable var str = "Hello, playground" str = "Hello world"; // use let to declare a constant let str1 = "I Am a handsome guy "; str1 = "I'm not a handsome guy"; // the following error will be reported: let name = "I Am a handsome guy"; // declare a constant and the type is automatically inferred as String

A: children's programming is not good! B: most of them do not like learning. Starting from reading the English version, you will fall in love with programming! Type aliases type redefinition (typedef) The keyword of the type that is redefined in SWIFT is typealias. As for how to use it, you don't have to talk about it. Let's look at the example: Typealias audiosample = uint16 // a type name audiosample is defined, representing the uint16 type var ma

chapter will cover. You can also use string values wherever you need to use the NSString object.1. String literalsYou can use string literals to define string literals. The string literal is a fixed text string enclosed by a double argument.String literals can be used to provide initial values for constants or variables let somestring = "a string literal";Note Swift can tell that the constant somestring is a string type, because we used string litera

Boolean value Swift has a basic Boolean type, called Boolean (bool), and a Boolean value called a logical value (logical), because it can only be true (true) or False (false). Swift provides two Boolean constant values: True,false: 1 Let orangesareorange (oranges are oranges) = True2 Let turnipsaredelicious (turnip is delicious) = False Orangesareorange and Turnipsaredelicious are inferred as Boolean typ

For Swift to learn, there must be a development environment. Simply put your Xcode mac system in the right way. So let's take a quick look at what's going on here.1.1 Download XcodeXcode is Apple's programming tool, similar to the Microsoft-produced Visual Studio, which writes Java Eclipse and develops flash IDE. So-called 工欲善其事 its prerequisite, so the first thing we need to know is where to download Xcode, there are several ways.Route One: Via AppSt

The main things to see today are the basic operators in Swift. Record it.Null-value merge operator (Nil coalescing Operator)a ?? bIn the??is a null-value merge operator thataBe judged, if not fornilThe package is unpacked, otherwise it returnsb。The following two points are required when using:-A must be optional.-B must be consistent with type aIn other words, a must have the possibility of being prepared tires, B must have to do the preparation of th

Explanation of swift 22 ----------- basic usage of UINavigationController and page value passing methods, viewcontroller. swiftBasic usage of UINavigationController and page value passing Methods This article introduces the basic usage of UINavigationController, because it involves multiple pages and introduces page value passing.1. Handwriting code creation UINavigationController It is easy to create by hand. First, create a project. By defaultstoryb

The two languages that are currently being developed for iOS are OC and Swift, both of which are currently showing a trend. But in order to develop well, learning two languages is very necessary. Now I'm going to start learning swift. This is my first Swift program--hello world. Apple introduced a very good tool for developing