<body><input type="button" value="按鈕" id="btn" onclick="showMessage()"/><input type="button" value="按鈕2" id="btn2" /><input type="button" value="按鈕3" id="btn3" /><script>function showMessage(){? alert('hallo world');}var btn2=document.getElementById('btn2');var btn3=document.getElementById('btn3');var eventUtil={addHandler:function(element,type,handler){? if(element.addEventListener)? {elemnet.addEventListener(type,handler,false);}else if(element.attachEvent){element.attachEvent('on'+type,handler);}else{element['on'+type]=handler;}}removeHandler:function(element,type,handler){? if(element.removeEventListener)? {elemnet.removeEventListener(type,handler,false);}else if(element.detachEvent){element.detachEvent('on'+type,handler);}else{element['on'+type]=null;}}}eventUtil.addHandler(btn3,'click',showMessage);</script></body>
幫我看看哪里錯(cuò)了
未來的大牛級(jí)人物
2016-03-14 12:12:46
