闭包 （循环事件获取不到i）

for(var i in fav){

(function(){
                var p=i;
                var obj=$S.getId(fav[i]);
                $S.addHandler($S.getId(fav[i]),‘click‘,function(){
                        $S.jsonp({url:‘http://www97.xcar.com.cn/bbs/api/api.php?action=fav_forum&fid=‘+p,callback:function(data){
                                  if(data.error==0){
                                     //成功收藏
                                     $S.getId(‘S_right‘).style.display = "block";
                                     setTimeout("$S.getId(‘S_right‘).style.display =‘none‘;",3000);
                                      obj.className += " "+‘S_active‘;
                                 }else if(dta.error==1){
                                     //未登陆
                                 }else if(data.error==3){
                                     //超过20条
                                     $S.getId(‘S_wrong‘).style.display = "block";
                                     setTimeout("$S.getId(‘S_wrong‘).style.display =‘none‘;",3000);
                                }
                        }});
                });
            })();

}

闭包 （循环事件获取不到i）

原文：http://www.cnblogs.com/afei-happy/p/4290249.html