<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>点击删除序号</title>
</head>
<body>
<table>
<tr>
<td>1</td>
<td>内容</td>
<td><input type="button" value="删除" class="delete"></td>
</tr>
</table>
<input type="button" value="添加" class="add">
</body>
<script type="text/javascript" src="jquery-1.7.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".add").click(function(){
var copy=$("table tr:last").clone();
copy.appendTo("table");
han();
$(".delete").click(function(){
$(this).parents("tr").remove();
han();
})
});
});
var han=function(){
var chang=$("table tr").length;
for(i=0; i<chang; i++){
//$("table tr").eq(i).find(‘td:first‘).text(i+1);
$("table tr").eq(i).find(‘td‘).eq(0).text(i+1);
}
}
</script>
</html>
时间： 2024-10-17 05:32:09