python第19篇之-列表的使用

#!/usr/bin/pythonshoplist = ['apple','mango','carrot','banana']print('i have',len(shoplist),'item to purchase')print('These items are:',end=' ')for item in shoplist:    print(item,end=' ')print('\nI also have to buy rice.')shoplist.append('rice')print('My shopping list is now',shoplist)print('I will sort my list now')shoplist.sort()print('sorted shopping list is',shoplist)print('The first item i will buy is',shoplist[0])olditem = shoplist[0]del shoplist[0]print('I bought the',olditem)print('My shopping list is now',shoplist)

结果：

~/Note/python # ./1using_list.pyi have 4 item to purchaseThese items are: apple mango carrot banana I also have to buy rice.My shopping list is now ['apple', 'mango', 'carrot', 'banana', 'rice']I will sort my list nowsorted shopping list is ['apple', 'banana', 'carrot', 'mango', 'rice']The first item i will buy is appleI bought the appleMy shopping list is now ['banana', 'carrot', 'mango', 'rice']