Set方法 Get方法(懒加载) 重构方法 重写方法 自定义方法

• (void)setShop

  _shop = shop; 重写set方法是 成员变量 一定要重新 赋值

}

• (instancetype)init
  {
  if (self = [super init]) {

}
return self;
}

• (void)layoutSubviews
  {
  [super layoutSubviews];

}

/**

• 懒加载
  */

• (NSArray *)shops
  {
  if (_shops == nil) {

    NSString *path = [[NSBundle mainBundle] pathForResource:@"shops.plist" ofType:nil];
    NSArray *dictArr = [NSArray arrayWithContentsOfFile:path];
    
    NSMutableArray *shopArr = [NSMutableArray array];
    
    for (NSDictionary *dict in dictArr) {
        
        JSShopModel *shop = [JSShopModel shopWithDict:dict];
        [shopArr addObject:shop];
        
    }
    _shops = shopArr;
  

  }

  return _shops;
  }