iOS开发-初始化和便利构造器写法

初始化

- (id)initWithName:(NSString *)namegender:(NSInteger)age{     if(self = [super init]){         _name = name;         _age = age;     }     return self;}

便利构造器

+ (id)personWithName:(NSString *)name  gender:(NSInteger)age{  Person *person = [[Person alloc]initWithName:name gender:gender];  return person;  }