判断表格是否有相同内容 核心代码

var xgtable =
document. getElementById_r("xgjj"); //tbody

var bgtable =
document. getElementById_r("addjj");

var xgstep = xgtable.rows.length-1;

var bgstep = bgtable.rows.length-1;

var count =
bgstep>xgstep?bgstep:xgstep;

for(var i = 0;i<count;i++){

alert(xgtable.rows[i+1].cells[1].innerHTML);

alert(bgtable.rows[i+1].cells[2].innerHTML);

if(xgtable.rows[i+1].cells[1].innerHTML ==
bgtable.rows[i+1].cells[2].innerHTML){

alert("有相同");

}

}