Python体验(04)-字典dictionary

时间：2010-11-21 来源：许明会

代码 #!/usr/bin/python
#filename:dict.py

#'ab' is communication book
ab = {
'Bill':'[email protected]',
'Kaifu-LEE':'[email protected]',
'Minghui':'[email protected]'
}

print "\nThere are %d contacts in the address-book:"%len(ab)
for name,email in ab.items():#index all the elements
        print '\t%s\t\t\t%s'%(name,email)
print "Bill's email address is %s"%ab['Bill']#index by key

print "\nAdd Lei-che's address: ab['Lei-che'] = '[email protected]' "
ab["Lei-che"] = '[email protected]' #append a dictionary
print "There are %d contacts in the address-book:"%len(ab)
for name,email in ab.items():#index all the elements
        print '\t%s\t\t\t%s'%(name,email)

print "\nKill Kaifu-LEE's information: del ab['Kaifu-LEE']"
del ab['Kaifu-LEE'] #del a dict
print "There are %d contacts in the address-book:"%len(ab)
for name,email in ab.items():#index all the elements
        print '\t%s\t\t\t%s'%(name,email)

#--==-----------the output is below -------==--
#There are 3 contacts in the address-book:
#        Kaifu-LEE                       [email protected]
#        Bill                    [email protected]
#        Minghui                 [email protected]
#Bill's email address is [email protected]

#Add Lei-che's address: ab['Lei-che'] = '[email protected]'
#There are 4 contacts in the address-book:
#        Lei-che                 [email protected]
#        Kaifu-LEE                       [email protected]
#        Bill                    [email protected]
#        Minghui                 [email protected]

#Kill Kaifu-LEE's information: del ab['Kaifu-LEE']
#There are 3 contacts in the address-book:
#        Lei-che                 [email protected]
#        Bill                    [email protected]
#        Minghui                 [email protected]