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// AController.m    import形式1
@import Module;

@interface ViewController ()

@end

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    SubA *info = [[SubA alloc] init];
    info.uid = 100;
    NSLog(@"%lu", (unsigned long)info.uid);
}
@end

// AController.m    import形式2
@import Module.subHeadA;

@interface ViewController ()

@end

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    SubA *info = [[SubA alloc] init];
    info.uid = 100;
    NSLog(@"%lu", (unsigned long)info.uid);
}
@end

// Module/subHeadA.h

@interface SubA

@property (nonatomic, assign) UInt32 uid;

@end

// Module/subHeadB.h    发生改变前

@interface SubB

@property (nonatomic, assign) UInt32 kk0;

@end

//  Module/subHeadB.h    发生改变后

@interface SubB

@property (nonatomic, assign) UInt32 kk0;

@property (nonatomic, assign) UInt32 kk1;

@end