dict常用操作

tel = {'jack': 4098, 'sape': 4139}
tel['guido'] = 4127
tel = dict([('sape', 4139), ('guido', 4127), ('jack', 4098)])

#dict.has_key
#dict.keys
#dict.values
#dict.items
print tel.has_key('jack')
print tel.keys()
print tel.values()
print tel.items()

#dict.copy
#dict.update
#dict.popitem
dict2 = tel.copy()
dictdict1 = dict([('lily', 3239)])
dict2.update(dict1)
print dict2
print dict2.popitem()