最近做项目遇到要动态添加、删除表格行的操作，实现如下

html代码

复制代码 代码如下:

<table cellpadding="0" cellspacing="0" border="1" id="LearnInfoItem">

<tr >

<td colspan="8" bgcolor="#96E0E2" ><h3>主要学习简历</h3></td>

</tr>

<tr id="tr1">

<td>起讫时间 </td>

<td>毕业院校</td>

<td>所学专业</td>

<td>学制</td>

<td>学位</td>

<td>学习方式</td>

<td>文化程度</td>

<td>

<input type="button" name="LearnAdd" value="添加" />

<input name='LearnTRLastIndex' type='hidden' id='LearnTRLastIndex' value="1" />

</td>

</tr>

</table>

javascript代码：

复制代码 代码如下:

<script language="javascript" type="text/javascript">// Example: obj = findObj("image1");

function findObj(theObj, theDoc)

{

var p, i, foundObj;

if(!theDoc) theDoc = document;

if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)

{

theDoc = parent.frames[theObj.substring(p+1)].document;

theObj = theObj.substring(0,p);

}

if(!(foundObj = theDoc[theObj]) && theDoc.all)

foundObj = theDoc.all[theObj];

for (i=0; !foundObj && i < theDoc.forms.length; i++)

foundObj = theDoc.forms[i][theObj];

for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++)

foundObj = findObj(theObj,theDoc.layers[i].document);

if(!foundObj && document.getElementById)

foundObj = document.getElementById(theObj);

return foundObj;

}

//添加一行学习简历

function LearnAddSignRow(){ //读取最后一行的行号，存放在LearnTRLastIndex文本框中

var LearnTRLastIndex = findObj("LearnTRLastIndex",document);

var rowID = parseInt(LearnTRLastIndex.value);

var signFrame = findObj("LearnInfoItem",document);

//添加行

var newTR = signFrame.insertRow(signFrame.rows.length);

newTR.id = "LearnItem" + rowID;

//添加列:起讫时间

var newNameTD=newTR.insertCell(0);

//添加列内容

newNameTD.innerHTML = "<input name='txtLearnStartDate" + rowID + "' id='txtLearnStartDate" + rowID + "' type='text' />";

//添加列:毕业院校

var newNameTD=newTR.insertCell(1);

//添加列内容

newNameTD.innerHTML = "<input name='txtName" + rowID + "' id='txtName" + rowID + "' type='text' />";

//添加列:所学专业

var newEmailTD=newTR.insertCell(2);

//添加列内容

newEmailTD.innerHTML = "<input name='txtEMail" + rowID + "' id='txtEmail" + rowID + "' type='text' />";

//添加列:学制

var newTelTD=newTR.insertCell(3);

//添加列内容

newTelTD.innerHTML = "<input name='txtTel" + rowID + "' id='txtTel" + rowID + "' type='text' />";

//添加列:学位

var newMobileTD=newTR.insertCell(4);

//添加列内容

newMobileTD.innerHTML = "<input name='txtMobile" + rowID + "' id='txtMobile" + rowID + "' type='text' />";

//添加列:学习方式

var newMobileTD=newTR.insertCell(5);

//添加列内容

newMobileTD.innerHTML = "<input name='txtMobile" + rowID + "' id='txtMobile" + rowID + "' type='text' />";

//添加列:文化程度

var newCompanyTD=newTR.insertCell(6);

//添加列内容

newCompanyTD.innerHTML = "<input name='txtCompany" + rowID + "' id='txtCompany" + rowID + "' type='text' />";

//添加列:删除按钮

var newDeleteTD=newTR.insertCell(7);

//添加列内容

newDeleteTD.innerHTML = "<div align='center'><input id='txtDel" + rowID + "' type='button' value='删除' onclick="LearnDeleteRow('LearnItem" + rowID + "')" /></div>";

//将行号推进下一行

LearnTRLastIndex.value = (rowID + 1).toString() ;

}

//删除指定行

function LearnDeleteRow(rowid){

var signFrame = findObj("LearnInfoItem",document);

var signItem = findObj(rowid,document);

//获取将要删除的行的Index

var rowIndex = signItem.rowIndex;

//删除指定Index的行

signFrame.deleteRow(rowIndex);

}

}

</script>

实现效果：