新增的行也可以变颜色了~
<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script type="text/javascript">
function addOne(obj){
// var tbody = document.getElementById('table').lastChild;
var tr = document.createElement('tr');
var td = document.createElement("td");
td.innerHTML = "<input type='text'/>";
tr.appendChild(td);
td = document.createElement("td");
td.innerHTML = "<input type='text'/>";
tr.appendChild(td);
td = document.createElement("td");
td.innerHTML = "<a href='javascript:;' onclick='deleteRow(this)'>删除</a>";
tr.appendChild(td);
document.getElementById('table').lastChild.appendChild(tr);
Highlight();
}
function deleteRow(obj){
var tr = obj.parentNode.parentNode;
tr.parentNode.removeChild(tr);
}
function Highlight(obj){
var tr=document.getElementsByTagName('tr');
for(var i=0;i<tr.length;i++){
tr[i].onmouseover=function(){
this.style.backgroundColor="#bbb";
};
tr[i].onmouseout=function(){
this.style.backgroundColor="#fff";
}
}
}
// var tr=document.getElementById('table').childNodes;
</script>
</head>
<body>
<table border="1" width="50%" id="table">
<tr>
<th>编号</th>
<th>姓名</th>
<th>操作</th>
</tr>
<tr>
<td>xh001</td>
<td>张三</td>
<td><a href="javascript:;" onclick="deleteRow(this)">删除</a></td>
</tr>
<tr>
<td>xh002</td>
<td>李四</td>
<td><a href="javascript:;" onclick="deleteRow(this)">删除</a></td>
</tr>
</table>
<input type="button" value="添加一行" onclick="addOne()" />
</body>
</html>