def qdii(self, min_volume=0):
        """以字典形式返回QDII数据
        :param min_volume:最小交易量，单位万元
        """
        # 添加当前的ctime
        self.__qdii_url = self.__qdii_url.format(ctime=int(time.time()))
        # 请求数据
        rep = requests.get(self.__qdii_url)
        # 获取返回的json字符串
        fundjson = json.loads(rep.text)
        # 格式化返回的json字符串
        data = self.formatjisilujson(fundjson)
        data = {x: y for x, y in data.items() if y["notes"] != "估值有问题"}
        # 过滤小于指定交易量的数据
        if min_volume:
            data = {
                k: data[k]
                for k in data
                if float(data[k]["volume"]) > min_volume
            }

        self.__qdii = data
        return self.__qdii