接下来是在openUrl里处理打开的操作，会给出选定文件的本地URL func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any]) -> Bool { if url.i…

import UIKit enum AlignType : NSInteger { case left = 0 case center = 1 case right = 2 } class EqualCellSpaceFlowLayout: UICollectionViewFlowLayout { //两个Cell之间…