银行卡4位一空格
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>银行卡4位一空格</title>
<script src="js/jquery-2.2.3.min.js"></script><!--引入juqery-->
</head>
<body>
<span class="span1">35461023641533274</span>
<script>
$(".span1").ready(function(){
var card = $(".span1").html();
for(var i = 0;i < card.length;i++){
if(/\S/g.test(card)){
this.innerHTML = card.replace(/\s/g,'').replace(/(.{4})/g,'$1 ');
}
$(".span1").html(this.innerHTML);
}
});
</script>
</body>
</html>
本文有任何错误，或有任何疑问，欢迎留言说明。
