laytable 列表行可滚动到指定位置

 let rows = table.cache.materialTable;

                    for (let i = 0; i < rows.length; i++){

                        if (rows[i].tId == tId){

                            let j = rows[i].LAY_TABLE_INDEX;

                            $('tbody > tr').eq(j).css('background','#e5e5e5');

                            let cellHtml = $('tbody > tr').eq(j);

                            $(".layui-table-main").animate({

                                scrollTop: cellHtml.offset().top - $(".layui-table-main").offset().top + $(".layui-table-main").scrollTop()

                            }, 200);

                        }

                    }