显示风格有:
1.currentContext
2.formSheet
3.fullScreen
4.none
5.overCurrentContext
6.overFullScreen
7.pageSheet
//跳转页面变设置ViewController的显示风格
let storyboard = UIStoryboard(name: "Setting", bundle: nil)
let controller = storyboard.instantiateInitialViewController()
controller?.modalPresentationStyle = .pageSheet
self.view.window?.rootViewController?.present(controller!, animated: true, completion: nil)