JSP中实现添加一行，删除一行操作

来源：互联网发布：淘宝胖驴编辑：程序博客网时间：2024/05/18 12:43

<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<SCRIPT type="text/javascript">
function numberCells()
{
    var count=0;
    for (i=0; i < document.all.Tab.rows.length; i++)
    {
        for (j=0; j < document.all.Tab.rows(i).cells.length; j++)
        {
            document.all.Tab.rows(i).cells(j).innerText = count;
            count++;
        }
    }
}

function tb_addnew()
{
var ls_t=document.all("Tab")
maxcell=ls_t.rows(0).cells.length;
mynewrow = ls_t.insertRow();
for(i=0;i <maxcell;i++)
{
mynewcell=mynewrow.insertCell();
mynewcell.innerText="a"+i;

}
}

function tb_delete()
{
var ls_t=document.all("Tab");

ls_t.deleteRow() ;
}

</SCRIPT>
<html>
<head>
<script type="text/javascript">
function addRow(TabId){
//获取要插入行的表格
var table = document.getElementById(TabId);
   //在最后一行插入一行
   var newRow = table.insertRow(table.rows.length);
    //在该行插入单元格
    var newCel1 = newRow.insertCell(0);
     var newCel2 = newRow.insertCell(1);
     var newCel3 = newRow.insertCell(2);
     newCel1.innerHTML = "第一列";
     newCel2.innerHTML = "第二列";
     newCel3.innerHTML = "第三列";
     }
     </script>
</head>
<body>
  <center>
   <table id="Tab" border="1" cellspacing="0" cellpadding="0">
    <tr>
     <td>
      第一列
     </td>
     <td>
      第二列
     </td>
     <td>
      第三列
     </td>
   </table>
   <br>
   <input type="button" onclick="addRow('Tab');" value="插入行"/>
   <input type="button" onclick="tb_delete();" value="删除行"/>
   <input type="button" onclick="tb_addnew();" value="添加行"/>
   <input type="button" onclick="numberCells();" value="显示单元个数"/>

  </center>
</body>
</html>