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- 新建一个 Student 类继承于 Person 类
#import "Person.h"extern NSString * const Education;
@interface Student : Person@property(nonatomic,copy)NSString *homeTown;
// 家乡
@property(nonatomic,assign)NSUInteger classNum;
// 班级
@property(nonatomic,copy)NSString *country;
// 国籍// 设置家乡 班级 国籍
-(void)setHomeTown:(NSString *)homeTown andClassNum:(NSUInteger)classNum andCountry:(NSString *)country;
// 打印学生信息
-(void)introduce;
// 打印教育经历
-(void)printEduation:(NSString *)edcation;
// 打印职业规划
-(void)printOccuptionPlan:(EmployeeType)employeeType;
@end
#import "Student.h"NSString * const Education = @"本科";
@implementation Student-(void)setHomeTown:(NSString *)homeTown andClassNum:(NSUInteger)classNum andCountry:(NSString *)country
{
_homeTown = [homeTown copy];
_classNum = classNum;
_country = [country copy];
}-(void)introduce
{
NSLog(@"姓名: %@, 性别: %@, 年龄： %lu, 班级: %lu, 家乡: %@, 国籍: %@",
self.name,self.sex,(unsigned long)self.age,(unsigned long)self.classNum,self.homeTown,self.country);
}-(void)printEduation:(NSString *)edcation
{
if (!edcation) {
NSLog(@"%@ 的学历是: %@",self.name,Education);
} else {
NSLog(@"%@ 的学历是: %@",self.name,edcation);
}
}-(void)printOccuptionPlan:(EmployeeType)employeeType
{
switch (employeeType) {
case EmployeeTypeEngineer:
NSLog(@"%@ 想成为 工程师",self.name);
break;
case EmployeeTypeDesigner:
NSLog(@"%@ 想成为 设计师",self.name);
break;
case EmployeeTypeFinance:
NSLog(@"%@ 想成为 财务",self.name);
break;
default:
NSLog(@"%@ 还不清楚",self.name);
break;
}
}@end
Student *lily = [[Student alloc] init];
// -[Person init]
lily.name = @"lily";
lily.age = 28;
lily.sex = @"女";
[lily setHomeTown:@"湖北" andClassNum:2 andCountry:Nationality];
[lily introduce];
// 姓名: lily, 性别: 女, 年龄： 28, 班级: 2, 家乡: 湖北, 国籍: 中国
[lily printEduation:NULL];
// lily 的学历是: 本科
[lily printOccuptionPlan:EmployeeTypeFinance];
// lily 想成为 财务
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