1. 
   

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对于student类继承了person类，组合了score类，请问我怎么对学生里面的score进行赋值？有没有大神指导下

1. #import <Foundation/Foundation.h>
   
2. 
   
3. typedef struct Date{
   
4.     int year;
   
5.     int month;
   
6.     int day
   
7. };
   
8. typedef enum  {
   
9.     sexMan,
   
10.     sexWoman
    
11. }Sex;
    
12. @interface Score : NSObject
    
13. {
    
14.     int _cScore;
    
15.     int _ocScore;
    
16.     int _iOSScore;
    
17. }
    
18. - (void)setCScore:(int)newCScore;
    
19. - (int)cScore;
    
20. - (int)ocScore;
    
21. - (int)iOSScore;
    
22. - (void)setOcScore:(int)newOcScore;
    
23. - (void)setIosScore:(int)newIosScore;
    
24. @end
    
25. @implementation Score
    
26. - (void)setCScore:(int)newCScore
    
27. {
    
28.     _cScore = newCScore;
    
29. }
    
30. - (int)cScore
    
31. {
    
32.     return _cScore;
    
33. }
    
34. - (int)ocScore
    
35. {
    
36.     return _ocScore;
    
37. }
    
38. - (int)iOSScore
    
39. {
    
40.     return _iOSScore;
    
41. }
    
42. - (void)setOcScore:(int)newOcScore
    
43. {
    
44.     _ocScore = newOcScore;
    
45. }
    
46. - (void)setIosScore:(int)newIosScore
    
47. {
    
48.     _iOSScore = newIosScore;
    
49. }
    
50. @end
    
51. @interface Person: NSObject
    
52. {
    
53.     NSString *_name;//姓名
    
54.     Date  *_birthday;//生日
    
55.     int _age;//年龄
    
56.     double _weight;//体重
    
57.     double _height;//身高
    
58.     Sex _mySex;//性别
    
59. }
    
60. - (void)setName:(NSString *)newName;
    
61. - (NSString *)name;
    
62. - (void)setBirthday:(Date)newBirthday;
    
63. - (Date)birthday;
    
64. - (int)age;
    
65. - (void)setWeight:(double)newWeight;
    
66. - (double)weight;
    
67. - (void)setHeight:(double)newHeight;
    
68. - (double)height;
    
69. - (void)setSex:(Sex)newSex;
    
70. - (Sex)sex;
    
71. @end
    
72. @implementation Person
    
73. //set姓名
    
74. - (void)setName:(NSString *)newName
    
75. {
    
76.     _name = newName;
    
77. }
    
78. //get姓名
    
79. - (NSString *)name
    
80. {
    
81.     return _name;
    
82. }
    
83. //set生日
    
84. - (void)setBirthday:(Date)newBirthday
    
85. {
    
86.     _birthday.year = newBirthday.year;
    
87.     _birthday.month = newBirthday.month;
    
88.     _birthday.day = newBirthday.day;
    
89. }
    
90. //get生日
    
91. - (Date)birthday
    
92. {
    
93.     return _birthday;
    
94. }
    
95. //get年龄
    
96. - (int)age
    
97. {
    
98.     return 2015 - _birthday.year;
    
99. //    NSDate *date = [NSDate date];
    
100. //    NSCalendar *cal = [NSCalendar currentCalendar];
     
101. //    unsigned int unitFlags = NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit;
     
102. //    NSDateComponents *d = [cal components:unitFlags fromDate:date];//把要从date中获取的unitFlags标示的日期元素存放在NSDateComponents类型的d里面；
     
103. //    //然后就可以从d中获取具体的年月日了；
     
104. //    NSInteger year = [d year];
     
105. //    NSInteger month = [d month];
     
106. //    NSInteger day  =  [d day];
     
107. //   
     
108. //    NSLog(@"%ld",year);
     
109. //    NSLog(@"%ld",month);
     
110. //    NSLog(@"%ld",day);
     
111. //    _age =(int)year - _birthday.year;
     
112. //    if (((int)month - _birthday.month)<0) {
     
113. //        _age--;
     
114. //    }else{
     
115. //        if (<#condition#>) {
     
116. //            <#statements#>
     
117. //        }
     
118. //    }
     
119.    }
     
120. //set体重
     
121. - (void)setWeight:(double)newWeight
     
122. {
     
123.     _weight = newWeight;
     
124. }
     
125. //get体重
     
126. - (double)weight
     
127. {
     
128.     return _weight;
     
129. }
     
130. //set身高
     
131. - (void)setHeight:(double)newHeight
     
132. {
     
133.     _height = newHeight;
     
134. }
     
135. //get身高
     
136. - (double)height
     
137. {
     
138.     return _height;
     
139. }
     
140. //set性别
     
141. - (void)setSex:(Sex)newSex
     
142. {
     
143.     _mySex = newSex;
     
144. }
     
145. //get性别
     
146. - (Sex)sex
     
147. {
     
148.     return _mySex;
     
149. }
     
150. @end
     
151. 
     
152. @interface Student : Person
     
153. {
     
154.     Score  *_score;
     
155. }
     
156. - (void)setScore:(Score *)newScore;
     
157. - (Score *)score;
     
158. @end
     
159. @implementation Student
     
160. - (void)setScore:(Score *)newScore
     
161. {
     
162.     _score = newScore;
     
163. }
     
164. - (Score *)score
     
165. {
     
166.     return _score;
     
167. }
     
168. 
     
169. @end
     
170. int main()
     
171. {
     
172. 
     
173. 
     
174.     return 0;
     
175. }

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相关代码如上，求指导

1. #import <Foundation/Foundation.h>
   
2. 
   
3. //日期
   
4. typedef struct {
   
5.     int year;
   
6.     int month;
   
7.     int day;
   
8. }Date;
   
9. //性别枚举
   
10. typedef enum  {
    
11.     sexMan,
    
12.     sexWoman
    
13. }Sex;
    
14. //score类申明
    
15. @interface Score : NSObject
    
16. {
    
17.     int _cScore;
    
18.     int _ocScore;
    
19.     int _iOSScore;
    
20. }
    
21. - (void)setCScore:(int)newCScore;
    
22. - (int)cScore;
    
23. - (int)ocScore;
    
24. - (int)iOSScore;
    
25. - (void)setOcScore:(int)newOcScore;
    
26. - (void)setIosScore:(int)newIosScore;
    
27. @end
    
28. //score方法实现
    
29. @implementation Score
    
30. - (void)setCScore:(int)newCScore
    
31. {
    
32.     _cScore = newCScore;
    
33. }
    
34. - (int)cScore
    
35. {
    
36.     return _cScore;
    
37. }
    
38. - (int)ocScore
    
39. {
    
40.     return _ocScore;
    
41. }
    
42. - (int)iOSScore
    
43. {
    
44.     return _iOSScore;
    
45. }
    
46. - (void)setOcScore:(int)newOcScore
    
47. {
    
48.     _ocScore = newOcScore;
    
49. }
    
50. - (void)setIosScore:(int)newIosScore
    
51. {
    
52.     _iOSScore = newIosScore;
    
53. }
    
54. @end
    
55. //人类声明
    
56. @interface Person: NSObject
    
57. {
    
58.     NSString *_name;//姓名
    
59.     Date  _birthday;//生日
    
60.     int _age;//年龄
    
61.     double _weight;//体重
    
62.     double _height;//身高
    
63.     Sex _mySex;//性别
    
64. }
    
65. - (void)setName:(NSString *)newName;
    
66. - (NSString *)name;
    
67. - (void)setBirthday:(Date)newBirthday;
    
68. - (Date)birthday;
    
69. - (int)age;
    
70. - (void)setWeight:(double)newWeight;
    
71. - (double)weight;
    
72. - (void)setHeight:(double)newHeight;
    
73. - (double)height;
    
74. - (void)setSex:(Sex)newSex;
    
75. - (Sex)sex;
    
76. @end
    
77. //人类方法实现
    
78. @implementation Person
    
79. //set姓名
    
80. - (void)setName:(NSString *)newName
    
81. {
    
82.     _name = newName;
    
83. }
    
84. //get姓名
    
85. - (NSString *)name
    
86. {
    
87.     return _name;
    
88. }
    
89. //set生日
    
90. - (void)setBirthday:(Date)newBirthday
    
91. {
    
92.     _birthday.year = newBirthday.year;
    
93.     _birthday.month = newBirthday.month;
    
94.     _birthday.day = newBirthday.day;
    
95. }
    
96. //get生日
    
97. - (Date)birthday
    
98. {
    
99.     return _birthday;
    
100. }
     
101. //get年龄
     
102. - (int)age
     
103. {
     
104.     return 2015 - _birthday.year;
     
105. //    NSDate *date = [NSDate date];
     
106. //    NSCalendar *cal = [NSCalendar currentCalendar];
     
107. //    unsigned int unitFlags = NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit;
     
108. //    NSDateComponents *d = [cal components:unitFlags fromDate:date];//把要从date中获取的unitFlags标示的日期元素存放在NSDateComponents类型的d里面；
     
109. //    //然后就可以从d中获取具体的年月日了；
     
110. //    NSInteger year = [d year];
     
111. //    NSInteger month = [d month];
     
112. //    NSInteger day  =  [d day];
     
113. //   
     
114. //    NSLog(@"%ld",year);
     
115. //    NSLog(@"%ld",month);
     
116. //    NSLog(@"%ld",day);
     
117. //    _age =(int)year - _birthday.year;
     
118. //    if (((int)month - _birthday.month)<0) {
     
119. //        _age--;
     
120. //    }else{
     
121. //        if (<#condition#>) {
     
122. //            <#statements#>
     
123. //        }
     
124. //    }
     
125.    }
     
126. //set体重
     
127. - (void)setWeight:(double)newWeight
     
128. {
     
129.     _weight = newWeight;
     
130. }
     
131. //get体重
     
132. - (double)weight
     
133. {
     
134.     return _weight;
     
135. }
     
136. //set身高
     
137. - (void)setHeight:(double)newHeight
     
138. {
     
139.     _height = newHeight;
     
140. }
     
141. //get身高
     
142. - (double)height
     
143. {
     
144.     return _height;
     
145. }
     
146. //set性别
     
147. - (void)setSex:(Sex)newSex
     
148. {
     
149.     _mySex = newSex;
     
150. }
     
151. //get性别
     
152. - (Sex)sex
     
153. {
     
154.     return _mySex;
     
155. }
     
156. @end
     
157. //学生类：学生是人类，拥有成绩
     
158. @interface Student : Person
     
159. {
     
160.     Score  *_score;//成绩。组合
     
161. }
     
162. - (void)setScore:(Score *)newScore;
     
163. - (Score *)score;
     
164. @end
     
165. //学生类的方法实现
     
166. @implementation Student
     
167. - (void)setScore:(Score *)newScore
     
168. {
     
169.     _score = newScore;//给成绩赋值
     
170. }
     
171. - (Score *)score//返回成绩
     
172. {
     
173.     return _score;
     
174. }
     
175. 
     
176. @end
     
177. int main()
     
178. {
     
179.     Student *stu = [Student new];
     
180.     Score *sc = [Score new];
     
181.     [stu setName:@"张三"];
     
182.     [sc setCScore: 80];
     
183.     [sc setOcScore: 90];
     
184.     [sc setIosScore: 78];
     
185.     [stu setScore:sc];
     
186.     Score *newsc = [stu score];
     
187.     NSLog(@"Cscore=%d,iosscore=%d,osScore=%d",[newsc cScore],[newsc iOSScore],[newsc ocScore]);
     
188.     Date d = {1990,12,16};
     
189.     [stu setBirthday:d];
     
190.     NSLog(@"%@今年%d岁，他的的生日是%d-%d-%d",[stu name],[stu age],[stu birthday].year,[stu birthday].month,[stu birthday].day);
     
191. 
     
192.     return 0;
     
193. }

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已经实现了，不知道代码是否规范合乎逻辑