javascript for 循环

有一个循环在IE上面创建面
for(var iIndex=0;iIndex<100;iIndex++){
var pPoints=getRandPolygon();
var strPoints=pPoints.join(",");
var poly=new Polygon(strPoints,"transparent", 0,0,"transparent");
var pBound =new Polyline(strPoints,"#ff0000", 1,0.7,1);

_MapApp.addOverlay(poly);
  var strMsg= " 长度:"+poly.getLength()+",面积:"+poly.getArea();
  poly.data = strMsg ;
  poly.boundry = pBound ;
  
poly.addListener("mouseover",function(e){showtip(poly);});
poly.addListener("mouseout",function(){htm();});


}
为什么循环完了 以后鼠标mouseover 实体上showtip 执行的都是最后一个poly的内容????

---

你这个是在一个循环中赋值的， 后面的把前面的给覆盖了

---

try[
code=JScript]poly.addListener("mouseover",function(e){showtip(poly);});
poly.addListener("mouseout",function(){htm();});
------------
(function(){poly.addListener("mouseover",function(e){showtip(poly);});
poly.addListener("mouseout",function(){htm();});
})();[/code]

---

引用

闭包经典问题。。。

JScript code

poly.addListener("mouseover",function(e){showtip(poly);});
//改为

poly.addListener("mouseover",function(p){
return function(e){