ios - 找不到 NSManagedObject.h 文件错误

Question

我的 SignupInfo.h

#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>

@class NSManagedObject;

@interface SignupInfo : NSManagedObject

@property (nonatomic, retain) NSString * firstName;
@property (nonatomic, retain) NSString * lastName;
@property (nonatomic, retain) NSString * sex;
@property (nonatomic, retain) NSString * email;
@property (nonatomic, retain) NSNumber * zipcode;
@property (nonatomic, retain) NSString * password;
@property (nonatomic, retain) NSString * retypepassword;


@end

我的 SignupInfo.m

#import "SignupInfo.h"
#import "NSManagedObject.h"


@implementation SignupInfo

@dynamic firstName;
@dynamic lastName;
@dynamic sex;
@dynamic email;
@dynamic zipcode;
@dynamic password;
@dynamic retypepassword;

@end

我收到构建错误提示 NSManagedObject.h file not found

我正在为 SignupInfo 使用核心数据模型

Answer 1

NSManagedObject在 <CoreData/CoreData.h> 包含的 .h 文件中定义.因此，您不需要声明它，也不需要#import 语句。