taobao.simba.insight.wordscats.get
        ===================================
        词和类目查询

def get(self, wordCategories, aFilter='PV|CLICK|AVGCPC|COMPETITION', nick=None):
        '''taobao.simba.insight.wordscats.get
        ===================================
        词和类目查询'''
        request = TOPRequest('taobao.simba.insight.wordscats.get')
        request['wordCategories'] = wordCategories
        request['filter'] = aFilter
        if nick!=None: request['nick'] = nick
        self.create(self.execute(request))
        return self.result