标签：style blog color io ar for sp div on
# 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
标签：style blog color io ar for sp div on
原文地址：http://www.cnblogs.com/hluo/p/4051794.html
