jquery中动态事件添加就是用的事件委托,在处理事件中,事件委托是非常高效的事件监听方法

receiver:监听者

typeEvent:监听事件

sender:被监听者

func:事件处理函数

//事件委托function delegate(receiver,typeEvent,sender,func){	EventUtil.addHandler(receiver,typeEvent,function(event){		event=EventUtil.getEvent(event);		var target=EventUtil.getTarget(event);		if(target==receiver){			return null;			}		var current=target;		var yes=false;		do{			if(judge(target)){				yes=true;				var sendElem=target;				break;			}{				var parent=target.parentNode;				target=parent;				}			}while(parent!=receiver);		if(yes){			func(receiver,sendElem,current);		}	});	function judge(elem){		var yes=true;		for(var i in sender){			if(elem[i]!=sender[i]){				yes=false;			}		}		return yes;	}}