《你好世界》你好爬虫世界

1、第 1 章 hello

　　my_foods = [\'pizza\',\'falafel\',\'carrot cake\',\'ice cream\']
　　print(\"The first three items in the list are: \")
　　aa = my_foods[0:3]
　　print(aa)
　　print(\"Three items from the middle of the list are: \")
　　bb = my_foods[1:4]
　　print(bb)
　　print(\"The last three items in the list are: \")
　　cc = my_foods[1:]
　　print(cc)