如题，求教
试了下……不会触发
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>事件流</title>
<script src="event.js"></script>
</head>
<body>
<div id="box">
<input type="button" value="按钮" id="btn">
<input type="button" value="按钮2" id="btn2">
<input type="button" value="按钮3" id="btn3">
<a href="event.html" id="go">跳转</a>
</div>
<div id="box2"></div>
<script>
window.onload=function(){
var go = document.getElementById("go");
var box = document.getElementById("box");
var box2 = document.getElementById("box2");
function showboxMes(){
alert("this is box")
}
function showboxMes2(){
alert("this is box2")
}
function showMes(e){
e = eventUtil.getEvent(e);
alert(eventUtil.getElement(e).nodeName);
}
eventUtil.addHandler(box,'click',showboxMes);
eventUtil.addHandler(box2,'click',showboxMes2);
eventUtil.addHandler(go,'click',showMes);
}
</script>
</body>
</html>var eventUtil = {
//add事件
addHandler:function(element,type,handler) {
if (element.addEventListener) {
element.addEventListener(type,handler,false);
}else if(element.attachEvent){
element.attachEvent("on"+type,handler);
}else{
element["on"+type]=handler;
}
},
//delete事件
removeHandler:function(element,type,handler) {
if (element.removeEventListener) {
element.removeEventListener(type,handler,false);
}else if(element.detachEvent){
element.detachEvent("on"+type,handler);
}else{
element["on"+type]=null;
}
},
//获取事件
getEvent:function(event) {
return event?event:window.event;
},
//获取事件属性
getType:function(event) {
return event.type;
},
//获取事件目标？触发事件的元素
getElement:function(event) {
return event.target || event.srcElement;
},
//阻止事件默认行为
preventDefault:function(event) {
if (event.preventDefault) {
event.preventDefault();
}else{
event.returnValue = false;
}
},
//阻止事件冒泡行为
stopPropagation:function(event) {
if (event.stopPropagation) {
event.stopPropagation();
}else{
event.cancelBubble = true;
}
},
}好像会触发，因为父元素都触发，那么兄弟元素也就触发了吧