送你一朵花

一段在角落里很久远的代码…..

<h1 id="h1">送你一朵花</h1>
 <script>
    var h1 = document.getElementById('h1');
	h1.addEventListener('click',clickx_,false);
	function clickx_(){
		alert("点击到了");
		unclick();
	}
     function unclick(){
		var h1 = document.getElementById('h1');
		h1.removeEventListener('click',clickx_,false);
	}
 </script>