[Objective-c 基础 - 1.2] OC的基本类

1 #import <Foundation/Foundation.h>

  2 

  3 typedef enum {GenderMan, GenderFemale} Gender;

  4 

  5 typedef enum {ColorRed, ColorBlue, ColorGreen} Color;

  6 

  7 typedef struct

  8 {

  9     int year;

 10     int month;

 11     int day;

 12 } Date;

 13 

 14 

 15 @interface Dog : NSObject

 16 {

 17 @public

 18     float weight;

 19     Color color;

 20 }

 21 - (void) eat;

 22 - (void) run;

 23 

 24 @end

 25 

 26 

 27 @interface Student : NSObject

 28 {

 29     @public

 30     char *name;

 31     Gender gender;

 32     Date birthday;

 33     double weight;

 34     Color favariteColor;

 35     Dog *dog;

 36 }

 37 

 38 - (void) eat;

 39 - (void) run;

 40 - (void) walkDog;

 41 - (void) feedDog;

 42 - (void) print;

 43 

 44 @end

 45 

 46 @implementation Student

 47 - (void) eat

 48 {

 49     weight++;

 50     NSLog(@"吃吃吃，体重增加了1KG， 现在体重是%f", weight);

 51 }

 52 

 53 - (void) run

 54 {

 55     weight--;

 56     NSLog(@"跑跑跑,体重减去了1KG，现在体重是%f", weight);

 57 }

 58 

 59 - (void) print

 60 {

 61     NSLog(@"这个学生的资料-》姓名:%s, 性别:%d, 生日:%d-%d-%d, 体重:%f, 喜爱的颜色:%d", name, gender, birthday.year, birthday.month, birthday.day, weight, favariteColor);

 62 }

 63 

 64 - (void) walkDog

 65 {

 66     [dog run];

 67 }

 68 

 69 - (void) feedDog

 70 {

 71     [dog eat];

 72 }

 73 @end

 74 

 75 

 76 @implementation Dog

 77 - (void) eat

 78 {

 79     NSLog(@"喂狗啦!!!");

 80     weight++;

 81     NSLog(@"狗狗吃吃吃，体重增加了1KG， 现在体重是%f", weight);

 82 }

 83 

 84 - (void) run

 85 {

 86     NSLog(@"遛狗啦!!!!");

 87     weight--;

 88     NSLog(@"狗狗跑跑跑,体重减去了1KG，现在体重是%f", weight);

 89 }

 90 @end

 91 

 92 int main()

 93 {

 94     Student *stu = [Student new];

 95     stu->name = "Jack";

 96     stu->gender = GenderMan;

 97     Date d = {1989, 8, 10};

 98     stu->birthday = d;

 99     stu->weight = 50;

100     stu->favariteColor = ColorRed;

101    

102     Dog *dog = [Dog new];

103     stu->dog = dog;

104    

105     [stu eat];

106     [stu feedDog];

107     [stu print];

108     [stu walkDog];

109     [stu feedDog];

110    

111     return 0;

112 }