新闻网站常用的带左右箭头图片切换特效，用鼠标点击箭头时自动切换图片和描述，可自定义图片。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>新闻网站带箭头js图片切换特效_武鸣人</title>
<meta name="keywords" content="武鸣人网站,武鸣信息网,武鸣本地网,武鸣信息资源平台,减肥,健身,励志,励志语录,js特效,网页特效,www.wuming.ren">
<meta name="description" content="欢迎来到武鸣人信息资源平台，各种信息免费发布，资源共享合作共赢，分享互联网流行的励志语录经典短句，减肥健身健康小常识及打卡记录，收集各种js特效代码。">
<style type="text/css">
body,div,ul,li{margin:0;padding:0;}
li{list-style:none;}
body{font:12px/1.5 \5fae\8f6f\96c5\9ed1;background:#000;}
#big_www_wuming_ren{position:relative;width:800px;height:auto!important;height:400px;min-height:400px;margin:20px 80px 50px 60px;text-align:center;}
#title{position:absolute;top:0;left:0;width:100%;background:#000;color:#fff;opacity:0.7;filter:alpha(opacity=70);font-size:20px;height:50px;}
#title span{padding:0 5px;line-height:50px;display:block;}
#big_www_wuming_ren.loading{background:url(/img/20240222_www_wuming_ren_7.gif) 50% 50% no-repeat;}
#masks_L,#masks_R{position:absolute;top:0;width:400px;height:100%;cursor:pointer;background:#f0f0f0;opacity:0;filter:alpha(opacity=0);}
#masks_L{left:0;}
#masks_R{right:0;}
#btn_L,#btn_R{position:absolute;top:50%;margin-top:-40px;width:39px;height:80px;overflow:hidden;cursor:pointer;text-indent:-9999px;background:url(/img/20240222_www_wuming_ren_1.png) no-repeat;opacity:0;filter:alpha(opacity=0);}
#btn_L{left:10px;background-position:0 0;}
#btn_R{right:10px;background-position:-39px 0;}
</style>
<script type="text/javascript">
function getStyle(obj, attr){return obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr]}
window.onload = function ()
{
var oBig = document.getElementById("big_www_wuming_ren");
var oMasksL = document.getElementById("masks_L");
var oMasksR = document.getElementById("masks_R");
var oBtnL = document.getElementById("btn_L");
var oBtnR = document.getElementById("btn_R");
var oTitle = document.getElementById("title");
var oSpan = oTitle.getElementsByTagName("span")[0];
var iNow = 0;
var aData = [
{"imgSrc" : "/img/20240222_www_wuming_ren_2.jpg", "title" : "7月26日，吊车将事故现场的车头残片吊至大型运输车辆上。"},
{"imgSrc" : "/img/20240222_www_wuming_ren_3.jpg", "title" : "7月26日，一辆大卡车准备驶离事故现场。"},
{"imgSrc" : "/img/20240222_www_wuming_ren_4.jpg", "title" : "7月26日，工人在给最后一节车厢盖上彩条布，准备运离现场。"},
{"imgSrc" : "/img/20240222_www_wuming_ren_5.jpg", "title" : "7月26日，一名工人在事故现场最后一节车厢上作业。"},
{"imgSrc" : "/img/20240222_www_wuming_ren_6.jpg", "title" : "7月26日，工人在给最后一节车厢盖上彩条布，准备运离现场。"}
];
//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)
oMasksL.onmouseover = oBtnL.onmouseover = function ()
{
startMove(oBtnL, "opacity", 100)
};
oMasksL.onmouseout = oBtnL.onmouseout = function ()
{
startMove(oBtnL, "opacity", 0)
};
oMasksR.onmouseover = oBtnR.onmouseover = function ()
{
startMove(oBtnR, "opacity", 100)
};
oMasksR.onmouseout = oBtnR.onmouseout = function ()
{
startMove(oBtnR, "opacity", 0)
};
function startMove(obj, attr, iTarget, fnEnd)
{
clearInterval(obj.timer);
obj.timer = setInterval(function ()
{
doMove(obj, attr, iTarget, fnEnd)
}, 30)
}
function doMove(obj, attr, iTarget, fnEnd)
{
var iCur = parseFloat(getStyle(obj, attr));
if (attr == "opacity")
{
iCur = parseInt(iCur * 100)
}
var iSpeed = (iTarget - iCur) / 5;
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
if (iTarget == iCur)
{
clearInterval(obj.timer);
fnEnd && fnEnd();
}
else
{
if (attr == "opacity")
{
obj.style.filter = "alpha(opacity = " + (iCur + iSpeed) + ")";
obj.style.opacity = (iCur + iSpeed)/ 100;
}
else
{
obj.style[attr] = iCur + iSpeed + "px";
}
}
}
oBtnL.onclick = function ()
{
if (iNow <= 0)
{
alert("前面没有图片了！")
return;
}
iNow--;
loadImg();
};
oBtnR.onclick = function ()
{
if(iNow >= aData.length - 1)
{
alert("这是最后一张图片了！")
return;
}
iNow++;
loadImg();
};
loadImg();
function loadImg()
{
oBig.className = "loading";
oSpan.style.opacity = oTitle.style.height = 0;
oSpan.style.filter = "alpha(opacity=0)";
var oImg = oBig.getElementsByTagName("img");
oImg[0] && oBig.removeChild(oImg[0]);
var oTemp = document.createElement("img");
var oNewImg = new Image();
oNewImg.onload = function ()
{
oBig.className = "";
oTemp.src = this.src;
oBig.appendChild(oTemp);
oTemp.style.width = (oTemp.offsetWidth > 800 ? 800 : oTemp.offsetWidth) + "px";
oBig.style.height = oTemp.style.height = oTemp.offsetHeight * oTemp.offsetWidth / oTemp.offsetWidth + "px";
oSpan.innerHTML = aData[iNow].title;
startMove(oTitle, "height", 50, function (){
startMove(oTitle.childNodes[0], "opacity", 100)
})
};
oNewImg.src = aData[iNow].imgSrc
}
};//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)
</script>
</head>
<body>
<a href="https://www.wuming.ren">武鸣人</a>，各种信息资源免费发布，分享励志语录经典短句，减肥健身常识，各种js特效代码。网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)<hr>
<!--欢迎来到武鸣人信息资源平台，各种信息免费发布，资源共享合作共赢，分享互联网流行的励志语录经典短句，减肥健身健康小常识及打卡记录，收集各种js特效代码。-->
<script type="text/javascript" src="https://www.wuming.ren/ad/tc.js"></script>
<script type="text/javascript" src="https://www.wuming.ren/ad/a.js"></script>
<div id="big_www_wuming_ren">
<div id="masks_L"></div>
<div id="masks_R"></div>
<div id="btn_L">左</div>
<div id="btn_R">右</div>
<div id="title"><span></span></div>
</div>
</body>
</html>