<reponame>jaywoong/python
dic = {'IE':28.5, 'Fire':10.3, 'Chrome':38.9}
print(type(dic))
print(len(dic))
print(dic['Fire'])
print(dic.get('Chrome'))
print('IE' in dic)

dic['IE'] = 29.5
dic['EG'] = 10.3
del dic['Fire']
print(dic)