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Exercise 39: Dictionaries, Oh Lovely Dictionaries

时间:2014-10-26 12:57:56      阅读:322      评论:0      收藏:0      [点我收藏+]
# create a mapping of state to abbreviation
states = {
Oregon: OR,
Florida: FL,
California: CA,
New York: NY,
Michigan: MI }
# create a basic set of states and some cities in them
cities = {
CA: San Francisco,
MI: Detroit,
FL: Jacksonville }
# add some more cities
cities[NY] = New York
cities[OR] = Portland
# print out some cities
print - * 10
print "NY State has: ", cities[NY]
print "OR State has: ", cities[OR]
# print some states
print - * 10
print "Michigan‘s abbreviation is: ", states[Michigan]
print "Florida‘s abbreviation is: ", states[Florida]
# do it by using the state then cities dict
print - * 10
print "Michigan has: ", cities[states[Michigan]]
print "Florida has: ", cities[states[Florida]]
# print every state abbreviat 


a = dict.get(‘A‘, ‘Default‘)

if ‘A‘ exists, print the value of ‘A‘; else print default value.

Exercise 39: Dictionaries, Oh Lovely Dictionaries

原文:http://www.cnblogs.com/hluo/p/4051794.html

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