在RootViewController.m文件里面，修改如下代碼
#elif GAME_AUTOROTATION == kGameAutorotationUIViewController
????//
????// EAGLView will be rotated by the UIViewController
????//
????// Sample: Autorotate only in landscpe mode
????//
????// return YES for the supported orientations
????
????return ( UIInterfaceOrientationIsPortrait( interfaceOrientation ) );