                        課程
                    
                        /前端開發
                        
                            /jQuery
                        
                        /jQuery基礎(三)—事件篇

這個有錯嗎，為什么我輸出沒效果

<!doctype?html>
<html>
<head>
<meta?charset="utf-8">
<title>無標題文檔</title>
<script?src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script>
<style?type="text/css">
.left?div,?.right?div?{
	width:?500px;
	height:?50px;
	padding:?5px;
	margin:?5px;
	float:?left;
	border:?1px?solid?#ccc;
}
.left?div?{
	background:?#bbffaa;
}
.right?div?{
	background:?yellow;
}
</style>
</head>

<body>
<h2>自定義事件trigger</h2>
<div?class="left">
????<div><span></span><span>0</span>點擊次數</div>
????<button>直接點擊</button>
????<button>通過自定義點擊</button>
</div>
<script?type="text/javascript">
//點擊更新次數
$("button:first").click(function(event,bottonName){
	bottonName?=?bottonName?||?'first';
	update($("span:first"),$("apan:last"),bottonName);
		
});

//通過自定義事件調用，更新次數
$("button:last").click(function(){
	$("button:first").trigger('click','last');	
	
});

function?update(first,last,bottonName){
	first.text(bottonName);
	var?n?=?parseInt(last.text(),10);
	last.text(n?+?1);
	
}




</script>
</body>
</html>