???

???????????????????????????????????????????????????????????????????????????????????????????????????Ψ????????????????????????????????????????????????

??????????ò?????????????????????????????????????????????????????????????????????????????????ü?????????????

??????????????????????????d = {key1 : value1, key2 : value2 }???????????/?????e?????????????????????????Щ??????????????С?

???????е??/???????????????????????????????????????????????????????????

?????dict??????/????

??????

??9.4 ??????

#!/usr/bin/python
# Filename: using_dict.py

# 'ab' is short for 'a'ddress'b'ook

ab = {       'Swaroop'   : 'swaroopch@byteofpython.info',
             'Larry'     : 'larry@wall.org',
             'Matsumoto' : 'matz@ruby-lang.org',
             'Spammer'   : 'spammer@hotmail.com'
     }

print "Swaroop's address is %s" % ab['Swaroop']

# Adding a key/value pair
ab['Guido'] = 'guido@python.org'

# Deleting a key/value pair
del ab['Spammer']

print '\nThere are %d contacts in the address-book\n' % len(ab)
for name, address in ab.items():
    print 'Contact %s at %s' % (name, address)

if 'Guido' in ab: # OR ab.has_key('Guido')
    print "\nGuido's address is %s" % ab['Guido']

????????code/using_dict.py??

???

$ python using_dict.py
Swaroop's address is swaroopch@byteofpython.info

There are 4 contacts in the address-book

Contact Swaroop at swaroopch@byteofpython.info
Contact Matsumoto at matz@ruby-lang.org
Contact Larry at larry@wall.org
Contact Guido at guido@python.org

Guido's address is guido@python.org

????ι???

???????????????????????????ab???????????????б????????????????????????????????????????????ü?/?????????????????????????????

???????????????????????????????????????????????????????μ??/??????????????????????????Guido???????????

????????????????????????del??????????/???????????????????????????????????????????????????????del???????????????????????????????????????????????????

???????????????????items???????????????е??????/?????????????????б???????????鶼????????????????????????????????????????????for..in????е????name??address?????for?????д????Щ???

??????????in?????????????????/?????????????????dict???has_key??????????????help(dict)????dict????????????б??

???????????????????????????????????????????????????????????????????????????????????????????????б????????/??????????????????????????????????????????????????????????????????б????? ????? ????