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标题: 请问类的组合时候怎么对被组合类里面的属性进行赋值 [打印本页]
作者: chaoren    时间: 2015-3-12 03:26
标题: 请问类的组合时候怎么对被组合类里面的属性进行赋值

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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
作者: chaoren    时间: 2015-3-12 03:28
  1. #import <Foundation/Foundation.h>

  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

  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. }

  169. @end
  170. int main()
  171. {


  174.     return 0;
  175. }
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作者: chaoren    时间: 2015-3-12 03:29
相关代码如上，求指导
作者: chaoren    时间: 2015-3-12 13:36
  1. #import <Foundation/Foundation.h>

  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. }

  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);

  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



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