book1.swift

book1.swift

import UIKit

class ContentViewController: UIViewController{
    
    var nowPageNumber = 0
    @IBOutlet weak var mainImageView: UIImageView!
    override func viewDidLoad() {
        super.viewDidLoad()
        mainImageView.image = UIImage(named:"\(nowPageNumber)")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }