@interface Test : NSObject
@property (nonatomic, strong) NSString * name;
@property (nonatomic, assign) NSInteger age;
@property (nonatomic, strong) NSString * sex;
@end
@interface Test(){
NSString *_chance;
}
@end
@implementation Test
//自动实现setter和getter
//@synthesize name;
//系统默认是这样滴
//@synthesize name = _name;
//但事实你可以这样写
@synthesize name = _chance;
//用户自己实现sex的setter和getter方法
@dynamic sex;
@end
#import "SubTest.h"
@implementation SubTest
//重载父类的属性
@synthesize sex = _sex;
@end
