Swift

1, dictionary-Dictionary (that is, key-value pairs)var empty = [String:int] ()// Create an empty dictionary var mydic = ["Name": "Hangge", "url": "hangge.com"] //Declare a dictionary mydic[" Address "] =" China "//Add or modify key value

1.2.The above modifies a configuration item that has a product Module name that will be used later.In the project, click File/new/file ..., select Ios/source/cocoa Touch Class, and create a new file as follows:Subclass of must be set to NSObject or

Using the Swift command under Ubuntu is too much fun, or trying to tinker with a Mac's virtual machineWei Feng Network has a few related articles, but a lot of resources to share can not download, in addition to this:

Group of Big God sent the website, feel useful on the first included, temporarily no time to see Swift, feel the code concise, but not too high reading, some code let the system to determine the type, the same, we look at the code when also have to

Shortly after Apple Swift was introduced, it was an accidental opportunity to come into contact with the language, and to look at its syntax

Import foundation//defines an optional type that indicates that the variable can be Nil//var intnumber:int? = 100////in use, add one after the variable! Represents a split package that can be obtained as a true value//print (intnumber!) if var

Getter & Setter getter & setterrarely used in Swift, the following code is for information onlyprivate var _name:string? var name:string? { get { return _name } set { = newvalue }}Storage-Type Properties & computed

Map and Flatmap are common concepts in functional programming and are available in languages such as Python. The map and FLAPMAP functions make it easy to convert an array into another new array.Map a function can be called by an array, which takes

Related articlesSwift QuickStart (i) First Swift programSwift Quick Start (ii) Basic data typesSwift Quick Start (c) operator1. Branching structureSwift provides two common branch control structures: The IF statement and the Swich statement. In

Although the original intention of Swift language is to be able to get rid of the heavy historical burden and restraint of objective-c, but it is undeniable that after more than 20 years of baptism, the COCOA framework has long been branded an

A swift tutorial that was recorded in the previous period. have been lazy did not send out, some of the tutorials are recorded in Xcode Beta2, so may not be suitable now, but still a little help, lazy don't want to write too much, basically is in

There are 4 ways to handle errors in 1.Swift. You can pass the error that the function throws to the code that called the function, handle the error with the do-catch statement, treat the error as an optional type, or assert that the error does not

Original blog, reproduced please indicate the sourceStringIn Swfit, string is Unicode-compatible. The usage is similar to the C language.AttentionIn cocoa and cocoa touch, Swift's string, and NSString in the foundation are compatible, and all

In programming, we often use懒加载, as the name implies, is used to open up space, such as the most commonly used controls in iOS developmentUITableView, we usually write this way when we implement the data source method objective-c-(Nsinteger)

: Playground-noun:a place where people can playimport uikitvar str = "Hello, Playground"//Constants defined with Letlet Maxlogincount = 10//variable is defined with Varvar Currentlogincount = 0currentLoginCount = 3//Define multiple variables or

(i) Type conversiontype conversions are more stringent in Swift, and can be considered as not mutually transforming between different types, and can only regenerate one object and value and copy one. 1.0 The conversion between integer values. //

The emulator displays a black screen problem cause after using Presentviewcontroller jump page in SwiftFor storyboard to make pages and handwritten pages, there are two different ways to jump pages.SolutionsFor handwritten pages and storyboard

Customizing the Pull to refresh control using the Swift languageCSDN Mobile will continue to be the essence of mobile development for you to explore the technical topics of mobile development, including mobile applications, development tools, mobile

1Let array1 = ["ABC","EFG"]2Let array2 = ["CCC",4]4 println (array2);5 6 vararray3:string[]=["ABC","DDD"]//the array type is specified. Requires that each array element be a string. 7 8Let array4:string[] =array19 Tenarray1[0] ="XYZ" One Aprintln

First create a project with a name of "Mymixed" and select Ios-framework&library-cocoa Touch frameworkThen create a swiftview.swift file inside, a OBJC ocview file and Myocview file three files are inherited UIView first in Swiftview call