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【代码】【Swift】面向协议编程之HelloWorld

cocoapods引入pod 'RealmSwift'PO:import HandyJSONimport RealmSwiftclass CoinInfo: Object,HandyJSON,Decodable{ @objc dynamic var nid: Int = 0 @objc dynamic var name: String = "" @objc dynamic var symbol: String = "" @objc dynamic var pri

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