<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>复选多选反选</title>
<meta charset="UTF-8">
<script src="jquery-3.4.1.js"></script>
</head>
<body>
<div>
<button onclick="selectAll()">全选</button>
<button onclick="cancel()">取消</button>
<button onclick="reverse()">反选</button>
</div>
<table border="1">
<tr>
<td><input type="checkbox"> </td>
<td>111</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>222</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>333</td>
</tr>
</table>
<script>
function selectAll() {
$('table :checkbox').each(function () {
$(this).prop('checked',true);
})
}
function cancel(){
$('table :checkbox').each(function () {
$(this).prop('checked',false);
})
}
function reverse(){
$('table :checkbox').each(function () {
if($(this).prop('checked')){
$(this).prop('checked',false);
}else{
$(this).prop('checked',true);
}
})
}
</script>
</body>
</html>
