xxxxx.xxxxx.campaign.add
        ===================================
        创建一个推广计划

def add(self, title, nick=None):
        '''xxxxx.xxxxx.campaign.add
        ===================================
        创建一个推广计划'''
        request = TOPRequest('xxxxx.xxxxx.campaign.add')
        request['title'] = title
        if nick!=None: request['nick'] = nick
        self.create(self.execute(request), fields=['success','result','success','result_code','result_message'], models={'result':Campaign})
        return self.result