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#!/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']
£¨Ô´Îļþ£ºcode/using_dict.py£©
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$ 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
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