js实现图片上下滚动切换显示，用户也可以通过点击上下箭头按钮来滚动图片展示，结合自己的需求来修改即可。
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<title>带上下箭头按钮图片切换广告代码_武鸣人</title>
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a{text-decoration:none;color:#004285;font-size:14px;font-weight:bold;}
a:hover{text-decoration:underline;color:#C33;}
.www_wuming_ren{border:1px solid #dedede;width:282px;margin-bottom:5px;position:relative;background:#fff;}
#qy a{font-size:12px;}
h5 span a{font-size:12px;font-weight:normal;color:#333;}
h5{padding:0 10px;font-size:14px;height:30px;line-height:30px;background:url() left center repeat-x;border-bottom:1px solid #dedede;}
span{float:right;}
</style>
<style>
#btm_wuming{position:absolute;right:0;top:60px;width:12px;height:43px;background:url(/img/20240510_www_wuming_ren_2.gif) no-repeat;overflow:hidden;}
#btm_wuming a{display:block;height:22px;}
#btm_wuming a#wuming_up:hover{background:url(/img/20240510_www_wuming_ren_2.gif) -13px top no-repeat;}
#btm_wuming a#wuming_dw:hover{background:url(/img/20240510_www_wuming_ren_2.gif) -26px -22px no-repeat;}
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<div id="qy" style="width:256px;margin:7px 10px 5px;height:94px;overflow:hidden" onMouseOver="qiScrollAmount=0"
onmouseout="qiScrollAmount=2">
<ul>
<li id="tab1">
<table border='0' cellspacing='0' cellpadding='0' width='256px'>
<tr>
<td height='70'><a href="https://www.wuming.ren"><img src="/img/20240510_www_wuming_ren_3.jpg" /></a></td>
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</li>
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</ul>
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<div id="btm_wuming"><a id="wuming_up" onclick="wuming_up()" href="javascript:;" target="_self"></a><a id="wuming_dw" onclick="wuming_dw()" href="javascript:;" target="_self"></a></div>
<script>
var qoMarquee = document.getElementById("qy"); //滚动对象
var tab1 = document.getElementById("tab1");
var tab2 = document.getElementById("tab2");
var qiLineHeight = 94;//单行高度，像素IE
var qiLineCount = 0; //实际行数
var qiScrollAmount = 2; //每次滚动高度，像素（速度）
var speed1=3000;//每次停留时间
var speed2=1;//滚动速度
var num=qoMarquee.getElementsByTagName('img').length;//总数
tab2.innerHTML=tab1.innerHTML;
var alink=document.getElementById('btm_wuming').getElementsByTagName('a');
for(var i=0;i<alink.length;i++){
alink[i].onfocus=function(){this.blur();}
}
function run() {
if(qoMarquee.scrollTop==num*qiLineHeight){qoMarquee.scrollTop=0;window.setTimeout( "run()", speed2 );}//重置并接着滚动
else{
qoMarquee.scrollTop +=qiScrollAmount;
if ( qoMarquee.scrollTop % qiLineHeight == 0 ) {window.setTimeout( "run()", speed1 );}//如果满格等待N秒
else {window.setTimeout( "run()", speed2 );}//正常滚动
}
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
function wuming_up(){
qiScrollAmount = 0;
var amount=1;
if(qoMarquee.scrollTop==num*qiLineHeight) qoMarquee.scrollTop=0;
qoMarquee.scrollTop +=amount;
if ( qoMarquee.scrollTop % qiLineHeight == 0 ) {amount=0;window.setTimeout( "qiScrollAmount = 2", speed1 );}
else window.setTimeout( "wuming_up()", 1 );
}
function wuming_dw(){
qiScrollAmount = 0;
var amount=1;
if(qoMarquee.scrollTop==0) qoMarquee.scrollTop=num*qiLineHeight;
qoMarquee.scrollTop -=amount;
if ( qoMarquee.scrollTop % qiLineHeight == 0 ) {amount=0;window.setTimeout( "qiScrollAmount = 2", speed1 );}
else window.setTimeout( "wuming_dw()", 1 );
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
window.setTimeout( "run()", speed1 );
</script>
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