Swift

first set up a swift project to delete the contents of storyboard and add a navigation Controller. Then set the class of the storyboard corresponding interface, set the view controller's is initial view controller in the navigation controller

// loop statements for var i = 0 ; i 5 ; i++ { Print("i = \(i)") }var j = 0 for j = 0; j Print("j = \(J)") }// for the first use of //1. Traversing strings let str = "Qwertyu" for temp in str.characters { Print("temp = \(

Optional TypeOptional Type: This value either exists equal to Xor the value does not exist at all var serverresponsecode: Int? = 404 //? This means that this only exists for 404, or that this value does not exist as nil .let

Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogThe swift error handling mode in Swift 1.x and Swift 2.0 is different in both modes.The Swift 1.x code error handling mode uses the Cocoa framework error handling mode,

A. Intro:Swift was ranked 18th in the October 2014 Tiobe programming language rankings, and in less than half a year since the launch of the 2014WWDC release, Swift has been sought after by programmers who are no less enthusiastic than the hottest

The music player I use is my own avplayer. Import header File #import Remote control event reception and processing-(void) Viewwillappear: (BOOL) animated{[Super viewwillappear:animated];[[UIApplication sharedapplication]

If there is a bit class that contains CGPoint the type of point attribute, the class is defined as followsclass Bit { var point : CGPoint init(point : CGPoint) { self.point = point }}Question: How do I compare bits? The answer: Hashable the

Swift can use almost any character as a constant and variable name, including Unicode, but cannot contain number symbols, arrows, invalid Unicode, horizontal lines-tabs, and cannot begin with a number.var π= 3.14 var new air software = " development

The Willset and Didset features are used in the swift language to monitor property value changes other than initialization of propertiesThere's no need to say too much, just look at the code below and you'll get it quickly.Import Foundationclass

Swift is officially open source! Did you get it?Swift Official Open Source! The SWIFT Team is delighted to announce that Swift is opening a new chapter. Since Apple released the Swfit programming language, it has become one of the fastest-growing

MARK:-Generates a solid color picture of the specified size func imagewithcolor (color:uicolor!, size:cgsize), uiimage{var size = size if Cgsizeequa Ltosize (size, cgsizezero) {size = Cgsizemake (1, 1)} Let rect = CGRectMake (0, 0, size.width,

Suddenly see someone else write about block of posts, let me suddenly have a want to write a post about closures. In my cognition, the closure in Swift is the block--in Object-c (perhaps my cognition is too shallow). A simple example of a previous

Swift is a new programming language for writing IOS and OS X apps. Swift combines the advantages of C and objective-c and is not limited by C compatibility. Swift uses a secure programming model and adds a lot of new features, which makes

If you come here, it means that you have started to use the new language of Swift.Just like Java has maven. OBJECTIVE-C also has its own dependency management tool, Cocoapods.But because Swift came out soon, a lot of Cocoapods managed third-party

: Playground-noun:a place where people can playimport uikit//no parameter no return//--void can be omitted or written as () because the return value is null essentially an empty tuple func Run (), Void//() { print ("I ' m Running")}run

/*************************************/Func SayHello (name: String, Age: Int) { Print("Your name is \(name), age is \(age)") }SayHello("Cai", Age: ) /*************************************/Func SayHello (),Int{ return }Print (SayHello()) /

: Playground-noun:a place where people can playimport uikit//Swift by default, the parameters passed in are not modifiable, that is, the let type, which is the constant parameter//if you want to modify the parameter Value, you need to add

: Playground-noun:a place where people can playimport Uikitfunc Add (A:int, b:int), int{return a + b}//where, ( int, int)--int is the explicitly declared function type let anotheradd: (int, int), int = Addanotheradd (3, 4)/*--------------------------

: Playground-noun:a place where people can playimport uikit//external parameters function is to let the programmer call the code can clearly see the meaning of the arguments represented by//internal parameters refers to the definition of functions

# Swift# -----# Swift is now used as the back-end for the S3-like object store. If Nova ' s# ObjectStore ("N-obj" in "Enabled_services") is ENABLED, it would not# Run if Swift is enabled. Setting The hash value is required and you'll# be-prompted