$(window).scroll(function(){
    if($(window).scrollTop() > 700){
  
        $("#w_fvideo-1644674979236").addClass("h");
      $("#c_portalResEbizads_banner-16448459970184935").addClass("h");
      $("#c_portalResPublic_codeContainer-1644845931989").addClass("h");
    }
  else{
     $("#w_fvideo-1644674979236").removeClass("h");
    $("#c_portalResEbizads_banner-16448459970184935").removeClass("h");
    $("#c_portalResPublic_codeContainer-1644845931989").removeClass("h");
      
    }
})


// 获取浏览器可见区域高度
        var window_height= document.documentElement.clientHeight;
        // 用户手动修改浏览器可见区域高度时修改变量
        window.onresize=function () {window_height=document.documentElement.clientHeight;};
        // 获取所需效果元素
        var My_vanwee=document.getElementsByClassName('vanwee');
        // 鼠标滚轮滚动执行方法
        window.onscroll = function(){
            // 获取鼠标滚轮滚动距离
            var _scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
            // 循环类vanwee
            for (var k=0;k<My_vanwee.length;k++){
                if (My_vanwee[k].classList.contains("f-up")==false && _scrollTop >= getOffsetTop(My_vanwee[k]) - window_height && _scrollTop<= getOffsetTop(My_vanwee[k])){
                    My_vanwee[k].classList.add("f-up");
                }
            }
        };
        // 判断元素父集是否有已定位元素
        function getOffsetTop(ele) {
            var rtn = ele.offsetTop;
            var o = ele.offsetParent;
            while(o!=null) {
                    rtn += o.offsetTop;
                    o = o.offsetParent;
            }
            return rtn;
        }
        // 滚动条等于0时执行第一屏效果
        function my_animation() {
            var _scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
            // 效果方法
            for (var k=0;k<My_vanwee.length;k++) {
                if (My_vanwee[k].classList.contains("f-up")==false && _scrollTop>= getOffsetTop(My_vanwee[k]) - window_height && _scrollTop<= getOffsetTop(My_vanwee[k])){
                    My_vanwee[k].classList.add("f-up");
                }
            }
        }
        my_animation();





 function test(){ 
 var $objTr = $("#c_portalResPublic_codeContainer-16446770694535954"); //找到要定位的地方 tr 
 $objTr.css("background-color","lightgray"); //设置要定位地方的css 
 var objTr = $objTr[0]; //转化为dom对象 
 $("body").animate({scrollTop:objTr.offsetTop},"slow"); //定位tr 
 } 
    
    
    
    
     setTimeout(function(){ 
      var oDiv11 = document.getElementById('w_fimg-1604383966206');
      var w = $("#content_box-1604384223253-0").width(); //宽度
      var h11 = oDiv11.offsetHeight; //高度
      var t1 = 600;
        
      $(window).scroll(function() {
        if($(window).width()>768){
          var scrollTop = $(document).scrollTop();
        if (scrollTop > t1) {
        $(".w_fvideo-001").addClass("h");
        }else {
       $(".w_fvideo-001").removeClass("h");
        } 
        }else{
          var scrollTop = $(document).scrollTop();
        if (scrollTop > t1) {
        $("#content_box-1604394347402-0").css({"top":"80px","position":"fixed","width":w,"z-index":"9"});
        }else {
        $("#content_box-1604394347402-0").css({"top":"0px","position":"relative"});
        } 
        }
      
      });
        
        
　},"1000");