排序

 down: function (el, index) {
                    /// <summary>
                    /// 向下移动
                    /// </summary>
                    /// <param name="el"></param>
                    /// <param name="index"></param>
                    if (vm.data[index + 1]) {
                        var data1 = vm.data[index];
                        var data2 = vm.data[index + 1];

                        var sort = data1.sort;
                        data1.sort = data2.sort;
                        data2.sort = sort;
                    }
                }

属性监听

vm.$watch('model.sort', function (newValue, oldValue) {
            vm.data.sort(function (a, b) {
                var ret = a['sort'] > b['sort'] ? 1 : -1;
                return ret;
            });
        });