判断复选框哪一个被点击
<!DOCTYPE html>
<html>
<head>
<script src="/jquery/jquery-1.11.1.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
var a=$(‘[type=checkbox]‘).length;
alert(a);
for(var i=0;i<a;i++){
if($(‘[type=checkbox]‘).eq(i).is(‘:checked‘)) {
alert(i+1);
}
}
});
});
</script>
</head>
<body>
<input type="checkbox" class="a">123
<input type="checkbox" class="b">123
<button>获取被点击的按钮</button>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<script src="/jquery/jquery-1.11.1.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
if($(‘[type=checkbox]‘).is(‘:checked‘)) {
alert(true);
}
});
});
</script>
</head>
<body>
<input type="checkbox" class="a">123
<input type="checkbox" class="b">123
<button>获取被点击的按钮</button>
</body>
</html>
