toggle
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>one()方法执行一次绑定事件</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<h3>one()方法执行一次绑定事件</h3>
<div>请点击我一下</div>
<script type="text/javascript">
$(function () {
var intI = 0;
$("div").toggle( function () {
intI++;
$(this).css("font-size", intI + "px");
})
});
</script>
</body>
</html>
