function (val, item) {
                            if (!item.qq) {
                                return "-";
                            }
                            return item.qq;
                        }
                    }
                    , {
                        field: 'balance', title: '余额', formatter: function (val, item) {
                            return '<span class="acg-badge acg-badge-light-success">￥' + item.balance + '</span>'
                        }
                    