Swift2.0中解决访问资源库函数 - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error conte错误
//访问保存照片UIImageWritetoSavedPhotosAlbum(UIImage*image,idcompletionTarget,SELcompletionSelector,void*contextInfo);//只能调用这个方法-(void)image:(UIImage*)imagedidFinishSavingWithError:(NSError*)errorcontextInf