_OBJC_CLASS $ _ClasConfig来自

Question

/*
@protocol ClasConfig
@end
*/

//class A
@interface ClassA : NSObject
    @property (nonatomic) *companyA;
    @property (nonatomic) NSArray *companyLists;

     - (NSMutableArray*)getCompanyLists:(CompanyListModel *)productionListModel;
@end

 //class config
@interface ClasConfig : NSObject

    @property (nonatomic) NSString *Number;
    @property (nonatomic) NSString *totalNumberOfCompany;
@end


@implementation ClassA
 - (NSMutableArray*)getCompanyLists:(CompanyListModel *)productionListModel
{
 ClasConfig *config = [[ClasConfig alloc] init];  **//Gives me linker error**
}
@end

ClasConfig * config = [[ClasConfig alloc] init]; //给我链接器错误 虽然我尝试过导入协议以供参考。

Answer 1

为了实现ClassConfig的类。

@implementation ClassConfig
@end

@implementation ClassA
 - (NSMutableArray*)getCompanyLists:(CompanyListModel *)productionListModel
{
 ClasConfig *config = [[ClasConfig alloc] init];  **//Gives me linker error**
}
@end