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1 #import <Foundation/Foundation.h>
2
3 @interface Person : NSObject
4
5 @property int age;
6 @property NSString * name;
7
8 - (id)initWithName:(NSString *)name andAge:(int)age;
9 @end
Person.m2
3 @interface Person : NSObject
4
5 @property int age;
6 @property NSString * name;
7
8 - (id)initWithName:(NSString *)name andAge:(int)age;
9 @end
1 #import "Person.h"
2 @implementation Person
3
4 - (id)initWithName:(NSString *)name andAge:(int)age
5 {
6
7 if (self = [super init]) {
8
9 _name = name;
10 _age = age;
11
12 }
13 return self;
14 }
15 @end
Student.h2 @implementation Person
3
4 - (id)initWithName:(NSString *)name andAge:(int)age
5 {
6
7 if (self = [super init]) {
8
9 _name = name;
10 _age = age;
11
12 }
13 return self;
14 }
15 @end
1 #import <Foundation/Foundation.h>
2 #import "Person.h"
3
4
5 @interface Student : Person
6
7 @property int no;
8
9 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no;
10
11 @end
Student.m2 #import "Person.h"
3
4
5 @interface Student : Person
6
7 @property int no;
8
9 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no;
10
11 @end
1 #import "Student.h"
2
3 @implementation Student
4
5 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
6 {
7
8 if (self = [super initWithName:name andAge:age])
9 {
10 _no = no;
11 }
12 return self;
13
14 }
15
16 @end
main.m2
3 @implementation Student
4
5 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
6 {
7
8 if (self = [super initWithName:name andAge:age])
9 {
10 _no = no;
11 }
12 return self;
13
14 }
15
16 @end
1 #import <Foundation/Foundation.h>
2 #import "Person.h"
3 #import "Student.h"
4
5 int main()
6 {
7
8 Student *s = [[Student alloc] initWithName:@"suweipeng" andAge:24 andNo:211106435];
9 NSLog(@"name is:%@ ,age is:%i, number is:%i", s.name, s.age, s.no);
10 return 0;
11 }
12
13 /*
14 鎬葷粨:
15 鏋勯犳柟娉曠殑璁捐鍘熷垯錛?br />16 鐖剁被鐨勫睘鎬т氦涓埗綾繪瀯閫犳柟娉曞鐞嗭紝瀛愮被鐨勬垚鍛樺彉閲忕敱瀛愮被鏋勯犳柟娉曞鐞嗐?br />17
18
19 @implementation Student
20 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
21 {
22
23 if (self = [super initWithName:name andAge:age])
24 {
25 _no = no;
26 }
27 return self;
28
29 }
30 @end
31
32 濡傛灉鎶婅繖孌典唬鐮佹敼鎴愬涓嬬殑鍧忓鏄紝濡傛灉Person綾諱腑鐨刟ge鍚嶅瓧鍙樹簡錛屽湪瀛愮被涓繀欏誨緱鍋氭洿鏀廣?br />33 浠ｇ爜鐨勮﹀悎鎬у己銆備絾濡傛灉鎴戜滑鐢ㄤ笂闈㈢殑浠ｇ爜鏉ュ疄鐜幫紝鍒欏瓙綾諱笉鐢ㄥ彉鍖栵紝鐖剁被鎬庝箞鍙樺寲鏄埗綾昏嚜宸?br />34 鐨勪簨鎯咃紝榪欏叾瀹炰篃灝辨槸鍗曚竴鑱岃矗~銆?br />35
36 @implementation Student
37 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
38 {
39
40 if (self = [super init])
41 {
42 _no = no;
43
44 self.age = age; // 鏈川涓婃槸璋冪敤setter涓巊etter鏂規(guī)硶銆備絾鏄痵etAge榪欎釜鏂規(guī)硶鍦?br />45 self.no = no; // 瀛愮被涓槸涓嶅瓨鍦ㄧ殑錛屾墍浠ュ畠浼氭部鐫superclass鎸囬拡緇х畫鎵懼埌鍏?br />46 // 鐖剁被錛岀劧鍚庤皟鐢ㄧ埗綾葷殑setAge鏂規(guī)硶錛屾墍浠ヨ繖涓ゅ彞鍏跺疄涔熷彲浠ユ敼鎴?br />47 // super.age = age, super.no = no;浣嗕笉寤鴻榪欎箞鍐欍?br />48 // 紼嬪簭鐨勮﹀悎鎬уお寮恒?br />49 }
50 return self;
51 }
52 @end
53
54 */
2 #import "Person.h"
3 #import "Student.h"
4
5 int main()
6 {
7
8 Student *s = [[Student alloc] initWithName:@"suweipeng" andAge:24 andNo:211106435];
9 NSLog(@"name is:%@ ,age is:%i, number is:%i", s.name, s.age, s.no);
10 return 0;
11 }
12
13 /*
14 鎬葷粨:
15 鏋勯犳柟娉曠殑璁捐鍘熷垯錛?br />16 鐖剁被鐨勫睘鎬т氦涓埗綾繪瀯閫犳柟娉曞鐞嗭紝瀛愮被鐨勬垚鍛樺彉閲忕敱瀛愮被鏋勯犳柟娉曞鐞嗐?br />17
18
19 @implementation Student
20 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
21 {
22
23 if (self = [super initWithName:name andAge:age])
24 {
25 _no = no;
26 }
27 return self;
28
29 }
30 @end
31
32 濡傛灉鎶婅繖孌典唬鐮佹敼鎴愬涓嬬殑鍧忓鏄紝濡傛灉Person綾諱腑鐨刟ge鍚嶅瓧鍙樹簡錛屽湪瀛愮被涓繀欏誨緱鍋氭洿鏀廣?br />33 浠ｇ爜鐨勮﹀悎鎬у己銆備絾濡傛灉鎴戜滑鐢ㄤ笂闈㈢殑浠ｇ爜鏉ュ疄鐜幫紝鍒欏瓙綾諱笉鐢ㄥ彉鍖栵紝鐖剁被鎬庝箞鍙樺寲鏄埗綾昏嚜宸?br />34 鐨勪簨鎯咃紝榪欏叾瀹炰篃灝辨槸鍗曚竴鑱岃矗~銆?br />35
36 @implementation Student
37 - (id)initWithName:(NSString *)name andAge:(int)age andNo:(int)no
38 {
39
40 if (self = [super init])
41 {
42 _no = no;
43
44 self.age = age; // 鏈川涓婃槸璋冪敤setter涓巊etter鏂規(guī)硶銆備絾鏄痵etAge榪欎釜鏂規(guī)硶鍦?br />45 self.no = no; // 瀛愮被涓槸涓嶅瓨鍦ㄧ殑錛屾墍浠ュ畠浼氭部鐫superclass鎸囬拡緇х畫鎵懼埌鍏?br />46 // 鐖剁被錛岀劧鍚庤皟鐢ㄧ埗綾葷殑setAge鏂規(guī)硶錛屾墍浠ヨ繖涓ゅ彞鍏跺疄涔熷彲浠ユ敼鎴?br />47 // super.age = age, super.no = no;浣嗕笉寤鴻榪欎箞鍐欍?br />48 // 紼嬪簭鐨勮﹀悎鎬уお寮恒?br />49 }
50 return self;
51 }
52 @end
53
54 */
]]>
2
3
4 @interface Person : NSObject
5 @property int age;
6 @end
7
8 @implementation Person
9
10 // override
11 - (void)init
12 {
13
14 if (self = [super init])
15 {
16 _age = 10;
17 }
18 return self;
19 }
20 @end
21
22
23 int main()
24 {
25
26 Person *p = [[Person alloc] init];
27 /*
28 鍦ㄤ負Person綾誨垎閰嶅畬絀洪棿錛岃繑鍥炴湭鍒濆鍖栫殑Person瀵硅薄鍚庛?br />29 鍏堣皟鐢≒erson瀵硅薄鐨勬瀯閫犳柟娉曪紝浣嗘槸鐢變簬閫掑綊鐨勭壒鎬э紝Person鏋勯?br />30 鍑芥暟鍐呭張璋冪敤NSObject鐨勬瀯閫犲嚱鏁幫紝鎵浠ユ槸鍏堝畬鎴怤SObject瀵硅薄鐨?br />31 鏋勯犳柟娉曪紝鍐嶅垵濮嬪寲Person鑷畾涔夌殑鎴愬憳鍙橀噺銆?br />32
33 涓昏鍏蟲敞涓婲SObject寰楁瀯閫犳柟娉曞仛浠涔堬紝鏍規(guī)嵁鑻規(guī)灉鐨勫畼鏂規(guī)枃妗ｃ侼SObject
34 鍙湁涓涓垚鍛樺彉閲忥紝isa銆俰nit鐨勫伐浣滃氨鏄垵濮嬪寲isa錛屾墍浠SObject鐨勬瀯閫?br />35 鏂規(guī)硶澶ф鏄繖鏍峰瓙鐨勩?br />36
37 - (id)init
38 {
39 isa = [Person class];
40 return self
41 }
42
43 鎬葷粨錛氫篃灝辨槸NSObject鐨勬瀯閫犲嚱鏁拌isa鎸囬拡鎸囧悜浜嗗綋鍓嶅璞℃墍鍦ㄧ殑綾匯?br />44 */
45 return 0;
46 }
]]>
]]>
]]>