segue传递问题
var vc=segue.destinationViewController as GalleryViewController
错误提示:IUViewController is not convertible to GalleryViewController ;did you mean to use as! to force downcast?
什么意思啊?
var vc=segue.destinationViewController as GalleryViewController
错误提示:IUViewController is not convertible to GalleryViewController ;did you mean to use as! to force downcast?
什么意思啊?
2016-03-16
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