NSStoryboard *story = [NSStoryboardstoryboardWithName:@"Main"bundle:[NSBundlemainBundle]];

NSViewController *myView = [story instantiateControllerWithIdentifier:@"dAbout"];

[selfpresentViewControllerAsModalWindow:myView];

以Sheet形式弹出窗口用 [self presentViewControllerAsSheet:myView];
以模式窗口形式弹出窗口用 [selfpresentViewControllerAsModalWindow:myView];