js动态表格获取And合并

一.动态的获取数据

function saveHistoryStatResult() {

                        var tab = document.getElementById("historyTable");

                        var rows = tab.rows;

                        var string = "";

                        //从第三行开始获取

                        for ( var i = 2; i < rows.length - 1; i++) {

                        //获取第几行中的第一列数据

                             var zhan = rows[i].cells[0].innerHTML;

                        }}

二.动态的合并行列（根据id合并）

 function myFunction()

                      {

                          var tab = document.getElementById("historyTable");

                           var rows = tab.rows;

                           var strinq = "";

                           var t = 0;

                           var mycars = new Array();

                           for (var i = 2; i < rows.length - 1; i++) {

                               var huoId = rows[i].cells[1].id;

                               for (var j = 0; j < mycars.length; j++) {

                                   if (huoId == mycars[j]) {

                                       t++;

                                       for (var z = 1; z <= 5; z++) {

                                           document.getElementById(rows[i].cells[z].id).setAttribute("rowspan",t+1);

                                       }

                                       for (var k = 0; k < 5; k++) {

                                           rows[i].deleteCell(1);

                                       }

                                   }

                               }

                               mycars[i] = huoId;

                           }

                      }