While looking Storyboard, control-drag from your source View Controller to your Destination view controller. This will create a segue that you can trigger programmatically right from your source View Controller. Ensure that you give you Segue a name. This name is what you will pass into the source View Controller's performSegue:withIdentifier: method.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…