自定义Model

@interface BaseModel:NSObject

- (void)setValue:(id)value forUndefinedKey:(NSString *)key;

@interface Mymodel:Basemodel;

@property(nonatomic,copy) NSSting *str;

- (instancetype)initMyModelWithDictionary:(NSDIctionary *)dictonary ;

@implementation MyModel

- (instancetype)initMyModelWithDictionary:(NSDIctionary *)dictonary {

 if(self = [super init]){

[self setValuesForKeysWithDictionary:dictionary];

}

return self;

}

@end