JQuery动态给table添加、删除行改进版

复制代码代码如下:

<html> 
<head> 
<title> 
</title> 
<script src="js/jquery-1.4.2_min.js" type="text/javascript"></script> 
<script type="text/javascript" language="javascript"> 
var row_count = 0; 
function addNew() 
{ 
var table1 = $('#table1'); 
var firstTr = table1.find('tbody>tr:first'); 
var row = $("<tr></tr>"); 
var td = $("<td></td>"); 
td.append($("<input type='checkbox' name='count' value='New'><b>CheckBox"+row_count+"</b>") 
); 
row.append(td); 
table1.append(row); 
row_count++; 
} 
function del() 
{ 
var checked = $("input[type='checkbox'][name='count']"); 
$(checked).each(function(){ 
if($(this).attr("checked")==true) //注意：此处判断不能用$(this).attr("checked")==‘true'来判断。 
{ 
$(this).parent().parent().remove(); 
} 
}); 
} 
</script> 
</head> 
<body> 
<input type="button" value="Add" onclick="addNew();"> 
<input type="button" value="Delete" onclick="del();"> 
<div id="rightcontent"> 
<table id="table1" cellspacing="3" cellpadding="3" border="1"> 
<tbody> 
<tr> 
<th> 
Add new row,then test the delete function. 
</th> 
</tr> 
</tbody> 
</table> 
</div> 
</body> 
</html>