决策系统做一个跑马灯,想要做到首尾相接,但是现在是显示完最后一位直接跳到第一位显示js代码如下:function(){setTimeout(function() {//隐藏报表块report0的滚动条(此报表块名为report4,根据具体情况修改)$("div").find(".frozen-north").css({'overflow-x': 'hidden','overflow-y': 'hidden'});$("div").find(".frozen-center").css({'overflow-x': 'hidden','overflow-y': 'hidden'});}, 1000);window.flag1 = true;var self1 = this;//鼠标悬停,滚动停止setTimeout(function() {$("div").find(".frozen-center").mouseover(function() {window.flag1 = false;});//鼠标离开,继续滚动$("div").find(".frozen-center").mouseleave(function() {window.flag1 = true;});var old = -1;var interval = setInterval(function() {if (!self1.isVisible()) {return;}if (window.flag1) {currentpos1 = $("div").find(".frozen-center").scrollTop;if (currentpos1 == old && 0 != currentpos1) {$("div").find(".frozen-center").scrollTop = 0;} else {old = currentpos1;//以25ms的速度每次滚动1.5PX$("div").find(".frozen-center").scrollTop = currentpos1 + 1.5;}}},40);},1000);}希望能在代码中改进,实现需要的跑马灯效果