<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery</title>
<script src="jquery-3.3.1.min.js"></script>
</head>
<body>
<script type="text/javascript">
$(function(){
// 全选
$("#selectAll").click(function(){
$("#cbList :checkbox").attr("checked", true);
});
// 全不选
$("#unSelect").click(function(){
$("#cbList :checkbox").attr("checked", false);
});
})
</script>
<div id="cbList">
<input type="checkbox" value="9001"/>蒋<br>
<input type="checkbox" value="9002"/>智<br>
<input type="checkbox" value="9003"/>昊<br>
</div>
<input type="checkbox" value="全选" id="selectAll"/>全选
<input type="checkbox" value="全不选" id="unSelect"/>全不选
</body>
</html>
