add: 添加top250 item

douban_book/douban_book/items.py

@@ -10,3 +10,15 @@ class DoubanBookItem(scrapy.Item):
     # define the fields for your item here like:
     # name = scrapy.Field()
     pass
+
+
+class DoubanBookTop250Item(scrapy.Item):
+    book_name = scrapy.Field()  # 书名
+    author_name = scrapy.Field()  # 作者
+    publisher = scrapy.Field()  # 出版社
+    pub_year = scrapy.Field()  # 出版年
+    book_isbn = scrapy.Field()  # ISBN
+    book_summery = scrapy.Field()  # 简介
+    rank_type = scrapy.Field()  # 榜单类型
+    rank_name = scrapy.Field()  # 榜单名
+    ranking = scrapy.Field()  # 排名