下面就是自己今天下午学的视频自己乱写的代码，请各位大神勿喷啦

1. //
   
2. //  main.m
   
3. //  第一个类
   
4. //
   
5. //  Created by apple on 14-5-20.
   
6. //  Copyright (c) 2014年 itcast. All rights reserved.
   
7. //
   
8. 
   
9. #import <Foundation/Foundation.h>
   
10. 
    
11. @interface Dog : NSObject
    
12. {
    
13.     char name;
    
14.     int age;
    
15. }
    
16. 
    
17. - (void)run;
    
18. - (void)eat;
    
19. @end
    
20. 
    
21. @implementation Dog
    
22. 
    
23. - (void)run
    
24. {
    
25.     NSLog(@"dog is running");
    
26. }
    
27. 
    
28. - (void)eat
    
29. {
    
30.     NSLog(@"dog is eating");
    
31. }
    
32. 
    
33. @end
    
34. 
    
35. @interface Car : NSObject
    
36. {
    
37.     @public
    
38.     int speed;
    
39.     int whlees;
    
40.     Dog *dog;
    
41. }
    
42. 
    
43. - (void)run;
    
44. - (void)stop;
    
45. - (void)liugou;
    
46. - (void)eatdog;
    
47. @end
    
48. 
    
49. @implementation Car
    
50. - (void)liugou
    
51. {
    
52.     [dog run];
    
53. }
    
54. - (void)eatdog
    
55. {
    
56.     [dog eat];
    
57. }
    
58. 
    
59. -(void)run
    
60. {
    
61.     NSLog(@"车在跑了");
    
62. }
    
63. -(void)stop
    
64. {
    
65.     NSLog(@"车停了");
    
66. }
    
67. 
    
68. @end
    
69. 
    
70. 
    
71. 
    
72. 
    
73. 
    
74. int main(int argc, const char * argv[])
    
75. {
    
76.     Car *c = [Car new];
    
77.     Dog *d = [Dog new];
    
78.     c->dog= d;
    
79.     [c liugou];
    
80.     [c run];
    
81.     [c stop];
    
82.     return 0;
    
83. }
    

复制代码

车也遛狗了···

嘿嘿，乱写的啦

遛狗= =！自娱自乐呀！

额  我还在学C语言呢

多谢分享