数据建模

• 提前确认要提取的字典字段,并定义在items.py中

建模

• 在items.py定义数据建模

import scrapy

class ItcastItem(scrapy.Item):
    # 定义要提取的字段
    avatar = scrapy.Field()
    name = scrapy.Field()
    professional = scrapy.Field()
    description = scrapy.Field()