问序列图像板初始化和初始化

EN

class ViewController: NSViewController {

    var secondarySB: NSStoryboard? = nil

    @IBAction
    func loadAndKeep(_ sender: NSButton) {
        //keeping a reference
        secondarySB = NSStoryboard.init(name: NSStoryboard.Name.init(rawValue: "Secondary"), bundle: nil)
        let vc = secondarySB?.instantiateInitialController() as! Secondary
        self.view.addSubview(vc.view)
    }
    @IBAction
    func load(_ sender: NSButton) {
        //ignoring the storyboard after I get the viewcontroller
        let sb = NSStoryboard.init(name: NSStoryboard.Name.init(rawValue: "Secondary"), bundle: nil)
        let vc = sb.instantiateInitialController() as! Secondary
        self.view.addSubview(vc.view)
    }
}