main.m 文件- #import <Foundation/Foundation.h>
- #import "Person.h" //导入类的.h文件
- int main(int argc, const char * argv[]) {
- @autoreleasepool {
-
- Person *person;//nil
- person =[[Person alloc]init];
- NSLog(@"Person:%p",person);// Person:0x100406140
-
- //创建对象并初始化
-
- // Person *person2 =[[[Person alloc]init]initWithAge:30 identify:358967822];
-
- Person *person2 =[[Person alloc]initWithAge:30 identify:358967822];//初始化对象,赋值,
- NSLog(@"Age1 : %d",[person2 getAge]);
- int age =28 ;
- [person2 setAge:age];//调用setAge方法,设置年龄
- NSLog(@"Age1 : %d",[person2 getAge]);
- [person2 setAge:++age];
- NSLog(@"Age1 : %d",[person2 getAge]);
- NSLog(@"Person:%p",person2);// Person:0x100406140
-
-
- }
- return 0;
- }
复制代码 Person.h 类的创建
- #import <Foundation/Foundation.h>
- @interface Person : NSObject
- {
- int identify;
- int age ;
- }
- -(id)initWithAge:(int) _age identify:(int) _identify;
- -(int)getIdentify;
- -(int)getAge;
- -(void)setAge:(int)_age;
- @end
复制代码 Person.m 类的声明部分
- #import "Person.h"
- @implementation Person
- -(id) init //隐藏的init、初始化 没有会调用父类的
- {
- if(self = [super init ]){
- NSLog(@"super init");
- }
- return self;
-
- }
- -(id)initWithAge:(int) _age identify:(int) _identify{
- if(self=[super init])//父类初始化成功 self、是子类
- {
- age=_age;
- identify =_identify;
-
- }
- return self;//返回ID、类型
- }
- -(int)getIdentify{
- return identify;
- }
- -(int)getAge{
- return age;
- }
- -(void)setAge:(int)_age{
- age=_age;
- }
- @end
复制代码
代码亲测可用,同学可以仔细阅读代码,能了解到类的基本的概念和运行的方式。
代码是在看视频的时候边看边敲的。希望能帮助到大家。
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