<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>動(dòng)態(tài)創(chuàng)建表格(還能刪除行列)</title>
<style type="text/css">
body,div
{
 margin:0;
 padding:0;
 font-size:14px;
}
table
{
 margin:0 auto;
}
td
{
 border:1px solid green;
 text-align:center;
}
</style>
<script type="text/javascript">
//動(dòng)態(tài)創(chuàng)建表格
function createTable() {
  var divMain = document.getElementById("divMain");
  removeAllChild(divMain); //刪除上次添加的表格
  var myTable = document.createElement("table");
  myTable.id = "DynamicTable";
  var myRow = document.getElementById("myRow").value;
  var myCol = document.getElementById("myCol").value;
  var trNode;
  var tdNode;
  var strTmp;
  for (var i = 1; i <= myRow; i++) {
    trNode = myTable.insertRow(-1);
    for (var j = 1; j <= myCol; j++) {
      strTmp ="第"+ i + "行,第"+ j + "列";
      tdNode = trNode.insertCell(-1);
      tdNode.innerHTML = "<a href='javascript:void(0);'>" + strTmp + "</a>";
    }
  }
  divMain.appendChild(myTable); //把表格添加到div中
  //event.srcElement.disabled = "true"; //添加按鈕禁用
}
//刪除指定節(jié)點(diǎn)下的所有子節(jié)點(diǎn)
function removeAllChild(nodeObj) {
  while (nodeObj.hasChildNodes()) {
    nodeObj.removeChild(nodeObj.firstChild);
  }
}
//刪除行
function DeleteRow() {
  var rowNum = document.getElementById("delRow").value;
  var tbl = document.getElementById("DynamicTable");

  if (tbl == null) {
    alert('請(qǐng)先創(chuàng)建表格');
    return;
  }
  if ((rowNum <= tbl.rows.length) && (rowNum > 0)) {
    tbl.deleteRow(rowNum-1);
  }
  else {
    alert('請(qǐng)輸入一個(gè)有效的行!');
  }
}
//刪除列
function DeleteCol() {
  var colNum = document.getElementById("delCol").value;
  var tbl = document.getElementById("DynamicTable");
  if (tbl == null) {
    alert('請(qǐng)先創(chuàng)建表格');
    return;
  }
  if(tbl.rows.length<=0) {
    alert('表格不存在行');
    return;
  }
  if ((colNum <= tbl.rows[0].cells.length) && (colNum > 0)) {
    for (var i = 0; i < tbl.rows.length; i++) {
      tbl.rows[i].deleteCell(colNum - 1);
    }
  }
  else {
    alert('指定列不存在');
  }
}
</script>
</head>
<body>
請(qǐng)輸入行數(shù)<input type="text" id="myRow" />,請(qǐng)輸入列數(shù)
<input type="text" id="myCol" /><br />
<input type="button" value="創(chuàng)建表格" onclick="createTable()" /><br />
<input type="text" id="delRow" /><input type="button" value="刪除行" 
onclick="DeleteRow()" /><br />
<input type="text" id="delCol" /><input type="button" value="刪除列" 
onclick="DeleteCol()" /><br />
<div id="divMain">
</div>
</body>
</html>

希望本文所述對(duì)大家的javascript程序設(shè)計(jì)有所幫助。

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