__objc__

表示宏内引用的文件确保只被使用Objective-C语言的文件所引用，保证引用关系的清晰。

#ifdef __OBJC__

    #import <UIKit/UIKit.h>
    #import <Foundation/Foundation.h>
    #import <AFNetworking.h>
    #import "SDWebImageManager.h"
    #import "UIImageView+WebCache.h"
    #import <BlocksKit.h>
    #import <BlocksKit+UIKit.h>
    #import <FrameAccessor.h>
//    #import <ReactiveCocoa.h>
    #import "NSDictionary+NotNullKey.h"
    #import "EXTScope.h"
    #import "UIImage+Tint.h"

    #import "SCNavigation.h"
    #import "SCActionSheet.h"

    #import "V2DataManager.h"
    #import "V2NotificationManager.h"
    #import "V2SettingManager.h"
    #import "V2CheckInManager.h"
    #import "SCWeiboManager.h"

    #import "V2Helper.h"

#endif