页面返回刷新

    <script type="text/javascript">
        //防止页面刷新,增加页面父框架增加标记变量
        var url = window.location.pathname;
        console.log(url);
        if(parent.flag == url){
            parent.flag="null";
            location.reload();
        }else{
            parent.flag = url;
        }
    </script>