<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
* {
padding: 0;
margin: 0;
}
.wrap {
width: 300px;
margin: 100px auto 0;
}
table {
border-collapse: collapse;
border-spacing: 0;
border: 1px solid #c0c0c0;
}
th,
td {
border: 1px solid #d0d0d0;
color: #404060;
padding: 10px;
}
th {
background-color: #09c;
font: bold 16px "微软雅黑";
color: #fff;
}
td {
font: 14px "微软雅黑";
}
tbody tr {
background-color: #f0f0f0;
}
tbody tr:hover {
cursor: pointer;
background-color: #fafafa;
}
</style>
<script type="text/javascript" src="js/jquery-1.12.4.min.js"></script>
<script type="text/javascript">
$(function () {
$(‘#j_cbAll‘).click(function () {
console.log($(this).prop(‘checked‘));
var isChecked = $(this).prop(‘checked‘);
$(‘#j_tb‘).find(‘input‘).prop(‘checked‘, isChecked);
})
$(‘#j_tb input‘).click(function () {
console.log($(‘#j_tb input‘).length);
var totalCheckNum = $(‘#j_tb input‘).length;
console.log($(‘#j_tb input:checked‘).length);
var checkedCheckNum = $(‘#j_tb input:checked‘).length;
var result = totalCheckNum == checkedCheckNum ? true : false;
$(‘#j_cbAll‘).prop(‘checked‘, result);
})
})
</script>
</head>
<body>
<div class="wrap">
<table>
<thead>
<tr>
<th>
<input type="checkbox" id="j_cbAll" />
</th>
<th>武功名称</th>
<th>所属大侠</th>
</tr>
</thead>
<tbody id="j_tb">
<tr>
<td>
<input type="checkbox" />
</td>
<td>碧海潮生曲</td>
<td>东邪</td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>蛤蟆功</td>
<td>西毒</td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>一阳指</td>
<td>南帝</td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>降龙十八掌</td>
<td>北丐</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>