LisenH的博客

代码如下：import UIKitclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from

首先到https://developer.apple.com/machine-learning/ 下载一个Resnet50.mlmodel文件，将它拖动到XCode项目文件夹：编写代码如下：import UIKitimport CoreMLclass ViewController: UIViewController { override func viewDidLo

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let website = "https://lisenh.com/h5/liuhai"

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //首先获得文件管理对象，它的主要功能包括：读取文件中的数据、向一个文件中写入数据、删除

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //在视图加载完成的方法中，分别调用4个文件写入方法 self.writ

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let rect = CGRect(x: 0, y: 0, width: 499, height: 726

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let rect = CGRect(x: 58, y: 40, width: 200, height: 2

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. Timer.scheduledTimer(timeInterval: 1, target

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //主线程休眠2秒，启动画面将停留2秒 Thread.sleep(for

var imageView = UIImageView() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. imageView

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //首先获得文件管理对象，它的主要功能包括：读取文件中的数据、向一个文件中写入数据、删除

import UIKitclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib.

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //获得一个应用实例，应用实例的核心作用是提供程序运行期间的控制和协作，每个程序必须有且

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let EVERLAUNCHED = "everLanuched"//创建一个字符串常量

var label = UILabel()//给当前视图控制器类添加一个标签属性，该标签对象用来显示远程服务器返回的信息 override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. self.view.backgroundColor = UIColor.black

import UIKitimport CoreImageclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typical

import UIKitimport CoreImageclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() let image = UIImage(named: "Pic1") let imageView =

代码如图：效果如图：

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let image = UIImage(named: "img01")//从项目资源中读

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let rect = CGRect(x: 58, y: 40, width: 200, height: 2

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let rect = CGRect(x: 58, y: 40, width: 200, height: 2

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. var images = [UIImage]()//初始化一个数组，用来存放图片素材

import UIKitimport AudioToolbox//导入音频工具箱框架，这样就可以使用系统声音服务了class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup a

import UIKitimport AVFoundation//引入流媒体基础框架，它能收集各种多媒体数据，这些数据可以来自不同的输入设备，比如摄像机、录音机等class ViewController: UIViewController { var audioPlayer:AVAudioPlayer = AVAudioPlayer()//初始化音频播放对象，并将音频播放对

import UIKit//导入媒体播放器框架，该框架允许你访问音频和视频资源。它是音频和视频文件的播放器，无需你控制其如何工作，让你很容易处理音频或视频文件import MediaPlayerclass ViewController: UIViewController { //创建一个视频播放控制器属性，用于播放视频 var mediaPlayer:MPMoviePlay

import UIKitimport AVFoundation//引入流媒体基础框架，它能收集各种多媒体数据，这些数据可以来自不同的输入设备，比如摄像机、录音机等class ViewController: UIViewController { var audioPlayer:AVAudioPlayer = AVAudioPlayer()//初始化音频播放对象，并将音频播放对

import Foundation//如果一个类始终只能创建一个实例，则这个类成为单例类class Singleton {//创建一个简单的类 var action = "Run"//给类添加一个属性 //对于单便类来说，需要创建一个唯一对外输出实例的方法，静态变量使用static来处理 static let singleton = Singleton()

import UIKitimport CoreImageclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() //获得系统内置滤镜的名称，并将滤镜名称放置在数组里 let builtInFilters = CIF

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let rect = CGRect(x: 0, y: 0, width: 499, height: 726

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. //首先获得应用程序目录的路径，在该目录下有三个文件夹：文档目录、库目录、临时目录以及一

override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let lbl = UILabel(frame: self.view.frame)//创

import UIKit//导入CoreImage框架，该框架提供了强大和高效的图像处理功能，用来对基于像素的图像进行分析、操作和特效处理import CoreImageclass ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad()

import UIKitclass QuartzView: UIView { // Only override draw() if you perform custom drawing. // An empty implementation adversely affects performance during animation. override func draw