Python遍历字典的几种方式

aDict = {'wang' : 1, 'xi' : 2, 'yang' : 3}print "##########aDict##########"for key in aDict:    print "aDict[%s]" % key, aDict[key]print "##########items##########"for (key, val) in aDict.items():    print "aDict[%s]=" % key, valprint "##########iteritems##########"for key, val in aDict.iteritems():    print "aDict[%s]=" % key, valprint "##########iterkeys,itervalues##########"for key, val in zip(aDict.iterkeys(), aDict.itervalues()):        print "aDict[%s]=" % key, val