定义一个Model，让其遵循NSCoding协议，方便我们进行归档数据存储（直接到plist或者NSUserdefaults）
OC
@interface MyModel:NSObject<NSCoding>
@property (copy,nonatomic)NSString * name;
@property (nonatomic)int age;
@end
@implementation MyModel
-(instancetype)initWithCoder:(NSCoder *)aDecoder{
if (self = [super init]) {
self.name = [aDecoder decodeObjectForKey:@"kName"];
self.age = [aDecoder decodeInt32ForKey:@"kAge"];
}
return self;
}
-(void)encodeWithCoder:(NSCoder *)aCoder{
[aCoder encodeObject:self.name forKey:@"kName"];
[aCoder encodeInt32:self.age forKey:@"kAge"];
}
-(NSString *)description{
return [NSString stringWithFormat:@"Name:%@; Age:%d",self.name,self.age];