def OnErrCancel(self, obj, f: OrderField, info: InfoField):
        """
        撤单失败
            :param self:
            :param obj:
            :param f:OrderField:
            :param info:InfoField:
        """
        print('=== [TRADE] OnErrCancel ===\n{0}'.format(f.__dict__))
        print(info)