jQuery菜单实例(全选,反选,取消)
废话不多说，直接上代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<input type="button" value="全选" onclick="checkAll()">
<input type="button" value="反选" onclick="reverseAll()">
<input type="button" value="取消" onclick="cancleAll()">
<table border="1">
<thead>
<tr>
<th>选择</th>
<th>IP</th>
<th>端口</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="checkbox"></td>
<td>1.1.1.1</td>
<td>80</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>1.1.1.1</td>
<td>80</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>1.1.1.1</td>
<td>80</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>1.1.1.1</td>
<td>80</td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>1.1.1.1</td>
<td>80</td>
</tr>
</tbody>
</table>
<script type="text/javascript" src='jquery-3.2.1.js'></script>
<script type="text/javascript">
function checkAll(){
$(':checkbox').prop('checked',true);
}
function cancleAll() {
$(':checkbox').prop('checked',false);
}
function reverseAll(){
$(':checkbox').each(function(){
var v = $(this).prop('checked')? false:true; /*三元运算： var v = 条件? 真值:假值*/
$(this).prop('checked',v)
})
}
</script>
</body>
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