个回答

• 云彩无色3804005

  2016-10-28 22:42:49

   $(document).ready(function(){  //函数不对
                 $(window).scroll(function(){ //函数不对同时scroll写错误
                var top=$(document).scrollTop();
                var daohang=$("#menu");
                var louceng=$("#content").find(".item");
                var currentid="";
                louceng.each(function(){  //函数不对
                    var loucengtop=$(this).offset().top;
                    if(top>loucengtop){
                        currentid="#"+$(this).attr("id");
                    }else return false;
                });
                var currentlink=$('#menu').find(".current");
                if(currentid&&currentid!=currentlink.attr("href")){
                    currentlink.removeClass("current");
                    daohang.find("[href="+currentid+"]").addClass("current");
                }
             })
  
  })

  0

• Edwardsr

  2016-09-05 15:01:42

  如果是用新版的JQuery，find()那里的代码要写成find("[href='"+currentid+"']")

  0

• Plinkchan

  2016-09-05 13:29:09

  你代码写错了....function的格式错了.....还有window的scroll方法.....写错了....应该是这样的:

   $(document).ready(function(){
              $(window).scroll(function(){

  0