1. 文件管理（NSFileManager）

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        //文件管理器
        let fileManager = NSFileManager.defaultManager()
        //設(shè)置路徑
        let path = NSHomeDirectory() + "/Documents/1.plist"
        print(path)
        if fileManager.fileExistsAtPath(path){
            
            try! fileManager.removeItemAtPath(path)
            
            
        }else{
            let h = "happy day"
            //創(chuàng)建plist文件
            fileManager.createFileAtPath(path, contents: h.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true), attributes: nil)
        
        }
        
        let file = NSHomeDirectory() + "/Documents/2/3/4"
        //創(chuàng)建文件夾
        try! fileManager.createDirectoryAtPath(file, withIntermediateDirectories: true, attributes: nil)
        let a = try! fileManager.attributesOfItemAtPath(path)
        print(a[NSFileSize])
    }
}

2. 文件處理器（NSFileHandle）

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let fileManager = NSFileManager.defaultManager()
        
        let path = NSHomeDirectory() + "/Documents/1.plist"
        print(path)
        if fileManager.fileExistsAtPath(path){
            print("文件存在")
            
        }else{
            let h = "happy day"
            
            fileManager.createFileAtPath(path, contents: h.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true), attributes: nil)
            
        }
        
        //設(shè)置文件處理器（可寫(xiě)繁仁，可讀港华，可更新）
        
        let handle = NSFileHandle.init(forReadingAtPath: path)
        //設(shè)置讀取文件數(shù)據(jù)的長(zhǎng)度（默認(rèn)每一次執(zhí)行都是從0開(kāi)始讀取數(shù)據(jù)）
        let d1 = handle?.readDataOfLength(2)
        print(d1?.length)
        print(NSString(data: d1!, encoding: NSUTF8StringEncoding))
        
        let hadle1 = NSFileHandle.init(forWritingAtPath: path)
        let s = "tu s"
        //string -> NSData
        let d = s.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
        hadle1?.writeData(d!)
        print(NSString(data: d!, encoding: NSUTF8StringEncoding))
    }
}

3. Scrollview

import UIKit

class ViewController: UIViewController,UIScrollViewDelegate {
    
    var scrollview : UIScrollView!
    override func viewDidLoad() {
        super.viewDidLoad()
        //設(shè)置scrollview
        scrollview = UIScrollView(frame: CGRect(x: 0, y: 100, width: self.view.frame.size.width, height: 200))
        scrollview.backgroundColor = UIColor.brownColor()
        self.view.addSubview(scrollview)
        
        //設(shè)置textview
        let textview = UITextView(frame: CGRect(x: 0, y: 0, width: scrollview.frame.size.width, height: scrollview.frame.size.height/2))
        textview.backgroundColor = UIColor.redColor()
        scrollview.addSubview(textview)
        
        
        //關(guān)聯(lián)方法
        scrollview.delegate = self
        //開(kāi)啟翻頁(yè)
        scrollview.pagingEnabled = true
        
        //設(shè)置偏移時(shí)整個(gè)視圖位置大小
        scrollview.contentSize = CGSize(width: self.view.frame.size.width * 4, height: self.view.frame.size.height)
        //開(kāi)啟方向鎖（一次只能一個(gè)方向）
        scrollview.directionalLockEnabled = true
        
        //彈性效果
        scrollview.bounces = false
        scrollview.showsHorizontalScrollIndicator = false
        scrollview.showsVerticalScrollIndicator = false
        
        //創(chuàng)建分頁(yè)對(duì)象
        let page = UIPageControl()
        //設(shè)置分頁(yè)數(shù)目
        page.numberOfPages = 3
        page.frame = CGRect(x: scrollview.frame.size.width/2-50, y: scrollview.frame.size.height, width: 100, height: 100)
        page.currentPageIndicatorTintColor = UIColor.blackColor()
        page.addTarget(self, action: #selector(didchange(_:)), forControlEvents: .ValueChanged)
        self.view.addSubview(page)
    }
    
    func didchange(sender: UIPageControl){
        //設(shè)置偏移位置
        let rect = CGPoint(x: scrollview.frame.size.width * CGFloat(sender.currentPage), y: 0)
        //設(shè)置偏移動(dòng)畫(huà)
        scrollview.setContentOffset(rect, animated: true)
    }
    
    func scrollViewWillBeginDragging(scrollView: UIScrollView) {
        print("開(kāi)始拖動(dòng)")
    }
    
    func scrollViewWillEndDragging(scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
        print("完成拖動(dòng)")
    }
    func scrollViewDidEndDragging(scrollView: UIScrollView, willDecelerate decelerate: Bool) {
        print("開(kāi)始減速")
    }
    func scrollViewWillBeginDecelerating(scrollView: UIScrollView) {
        print("停止減速")
    } 
}