[Objective-c 基础 - 2.6] @property和@synthesize

 1  
 2 Student.h
 3 @interface Student : NSObject
 4 {
 5     int _age;
 6     int _no;
 7     int age;//此变量不会被访问到
 8     double height;
 9     NSString *_name;
10 }
11 
12 @property int age, no;
13 @property int height;
14 @property NSString *name;
15 
16 @end

1 @implementation Student
2 
3 @synthesize age = _age, no = _no, height = _height;//指定一下成员变量，否则会访问同名变量，如果不存在，就会自动生成@private的变量
4 @synthesize name = _name;
5 
6 @end

1 @interface Student : NSObject
2 
3 @property int age;
4 @property double height;
5 @property NSString *name;
6 
7 @end

1 @interface Car : NSObject
2 
3 @property int wheels;
4 
5 @end