 callback: function() {
                        setTimeout(function() {
                            // 每次下拉刷新后，上拉的状态会被自动重置
                            appendTestData(listDom, 10, true);
                            miniRefresh.endDownLoading(true);
                        }, requestDelayTime);
                    }
                },
                up: {
                    isAuto: true,
                    callback: function() {
                        setTimeout(funct