!DOCTYPE html html head meta charset= "UTF-8" title/title script src= "../../js/jquery-3.3.1.min.js" /script script function selectAll(obj) { $( ". itemSelect "). prop( "checked" ,obj. checked) ; } /script /head body table id= "tab1" border
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="../../js/jquery-3.3.1.min.js"></script>
<script>
function selectAll(obj) {
$(".itemSelect").prop("checked",obj.checked);
}
</script>
</head>
<body>
<table id="tab1" border="1" width="800" align="center" >
<tr>
<td colspan="5"><input type="button" value="删除"></td>
</tr>
<tr>
<th><input type="checkbox" onclick="selectAll(this)" ></th>
<th>分类ID</th>
<th>分类名称</th>
<th>分类描述</th>
<th>操作</th>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>1</td>
<td>手机数码</td>
<td>手机数码类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>2</td>
<td>电脑办公</td>
<td>电脑办公类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>3</td>
<td>鞋靴箱包</td>
<td>鞋靴箱包类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>4</td>
<td>家居饰品</td>
<td>家居饰品类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
</table>
</body>
</html>