摘要：
#import <QuickLook/QuickLook.h> @interface VC()<QLPreviewControllerDataSource,QLPreviewControllerDelegate> @property (nonatomic,strong)NSURL *fileURL; 阅读全文
摘要：
<UIDocumentPickerDelegate> @property (nonatomic, strong) UIDocumentPickerViewController *documentPickerVC; /** 初始化 UIDocumentPickerViewController 选文件啊 阅读全文