/**
 * Created by Administrator on 2017/6/13 0013.
 */
$(document).ready(function(){
    var index_li=$('.ul_list li');
    for(var i = 0;i<=index_li.length;i++){
        if(i%4 == 0){
            index_li.eq(i).addClass("border-top")
        }
    }
});