对象、消息、运行期--7：在对象内部尽量直接访问实例变量

xy_ss

发布于 2023-11-22 08:18:36

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发布于 2023-11-22 08:18:36

文章被收录于专栏：浮躁的喧嚣

在fullName的获取方法和设置方法中，使用点语来访问相关属性

#import <Foundation/Foundation.h>
@interface Person : NSObject
@property (nonatomic,copy) NSString *firstName;
@property (nonatomic,copy) NSString *lastName;
- (NSString *)fullName;
- (void)setFullName:(NSString *)fullName;
@end

#import "Person.h"
@implementation Person
- (void)setFullName:(NSString *)fullName{
    NSArray *nameArr =[fullName componentsSeparatedByString:@" "];
    self.firstName = nameArr[0];
    self.lastName = nameArr[1];
}
- (NSString *)fullName{
     return [NSString stringWithFormat:@"%@-%@",self.firstName,self.lastName];
}
@end

在fullName的获取方法和设置方法中，直接访问属性

#import "Person.h"
@implementation Person
- (void)setFullName:(NSString *)fullName{
    NSArray *nameArr =[fullName componentsSeparatedByString:@" "];
    _firstName = nameArr[0];
    _lastName = nameArr[1];
}
- (NSString *)fullName{
     return [NSString stringWithFormat:@"%@-%@",_firstName,_lastName];
}
@end