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':'billgates@microsoft.com',
'Kaifu-LEE':'kaifu-lee@google.com',
'Minghui':'minghui@lypower.com'
}
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'] = 'chelei@zhenghai.com' "
ab["Lei-che"] = 'chelei@zhenghai.com' #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 kaifu-lee@google.com
# Bill billgates@microsoft.com
# Minghui minghui@lypower.com
#Bill's email address is billgates@microsoft.com
#Add Lei-che's address: ab['Lei-che'] = 'chelei@zhenghai.com'
#There are 4 contacts in the address-book:
# Lei-che chelei@zhenghai.com
# Kaifu-LEE kaifu-lee@google.com
# Bill billgates@microsoft.com
# Minghui minghui@lypower.com
#Kill Kaifu-LEE's information: del ab['Kaifu-LEE']
#There are 3 contacts in the address-book:
# Lei-che chelei@zhenghai.com
# Bill billgates@microsoft.com
# Minghui minghui@lypower.com
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