用JScript实现VB,C#的[委托Delegate]:

By:
[Lostinet{lostinet@21cn;lostinet@ch+new Date()+" "+Math.random();
 => Object[theIndex]=Functi)
 {
  delegate.Index=funcOrIndex;
  delegate.Functi)throw("没有指定函数!");
 return delegate;
}
//当delegate被调用时，这个函数就会被调用。
functi;
 for(var i=0;i<arguments.length;i++)
 {
  strArguments+="Delegate.Stack().Arguments["+i+"]";
  if(i<arguments.length-1)strArguments+=",";
 }
 if(this.Index)
  var theIndex=this.Index;
 else
 {
  var theIndex="delegate functi"+theIndex+"\"]("+strArguments+");";
 try//运行delegate，释放当前的delegate的情况
 {
  eval(strEval);
 }
 catch(x)
 {
 //excepti)Delegate.Stack.Positi;
functi;
 var count=0;
 for(var i in this)
 {
  count++;
  str+=i+":"+typeof(this[i])+"\n";
 }
 var str="a,b,c="+a+":"+b+":"+c+"\nthis.value="http://www.dedecms.com/web-art/htmlbase/Javascript/20030317/+this.value+"\n"+count+"\n"+str;
 myalert(str);
}
var delegate=Delegate(obj,func);//传递函数引用
delegate(3,33,333);
obj.callthefunc=func;//或者是：obj["callthefunc"]=func;
delegate=Delegate(obj,"callthefunc");//传递名字
delegate(4,5,6);

var xml=new ActiveXObject("Microsoft.XMLDOM");
var xmlo=new Object();
xmlo.xml=xml;
xmlo.name="xmlo";
xml.;
xml2.+Math.floor((new Date().getTime()+Math.random())*1000);
 if(typeof(funcOrName)=="string")
 {
  delegate.FuncName=funcOrName;
  delegate.Functi;
 var i=0;
 for(i=0;i<args.length;i++)
 {
  strArguments+="Delegate.Coll[''"+cid+"''].Arguments["+i+"]";
  if(i<args.length-1)strArguments+=",";
 }
 if(i>0&&i<this.Arguments.length)strArguments+=",";
 for(;i<this.Arguments.length;i++)
 {
  strArguments+="Delegate.Coll[''"+cid+"''].Delegate.Arguments["+i+"]";
  if(i<this.Arguments.length-1)strArguments+=",";
 }

 var funcName=this.FuncName||cid;
 if(this.FuncName==null)this.Object[funcName]=this.Functi)Delegate.Coll.Length=0;
 Delegate.Coll.Length++;
 var cid=delegate.UniqueName+"call"+Math.floor((new Date().getTime()+Math.random())*1000);
 var EvalCaller=new Delegate.EvalCaller(delegate,args,cid);
 Delegate.Coll[cid]=EvalCaller;
 return cid;
}
functi;
 for(var i=0;i<myjoin.arguments.length;i++)
  str+=myjoin.arguments[i];
 return str;
}
alert(
 Delegate(new Object(),myjoin)
 .PreInvoke(1,2,3,4,5,6,7,8,9)
 .PreInvoke("a","b","c","d","e")
 (9,8,7,6)
);

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选择5ucms.org 选择未来