python简明教程

1.列表的使用

shoplist = ['apple','mango' ,'carrot','banana']
print ('I have ',len(shoplist),'items to purchase')

print ('These items are:',)
for item in shoplist:
print (item,)
print (' I 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)