jquery添加的新节点触发无效?
<!DOCTYPE html>
<meta charset=utf-8>
<html>
<head>
<style type="text/css">
.main{border:1px solid red;min-height:100px;width:500px;}
.main .app{cursor:pointer;}
</style>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
</head>
<body>
<div class="main">
<div class="app">Good_Old</div>
</div>
<input type="button" value="TEST">
<script>
$(document).ready(function(){
$(".app").click(function(){
alert(123);
})
$("input[type=button]").click(function(){
$(".main").append('<div class="app">Good_New</div>');
})
})
</script>
</body>
</html>
测试发现Old正常,新添的New节点不会弹出123
高手指点