JavaScript图片切换展示效果轮播滚动切换特效代码

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以下是 JavaScript图片切换展示效果轮播滚动切换特效代码的示例演示效果:
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部分效果截图:
HTML代码(index.html):
<!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" />
<meta name="keywords" content="JS代码,焦点图,JS广告代码,JS特效代码" />
<meta name="description" content="此代码内容为JavaScript图片切换展示效果，属于站长常用代码" />
<title>JavaScript图片切换展示效果</title>
</head>
<body>
<style type="text/css"> 
.container, .container *{margin:0; padding:0;}

.container{width:408px; height:168px; overflow:hidden;position:relative;}

.slider{position:absolute;}
.slider li{ list-style:none;display:inline;}
.slider img{ width:408px; height:168px; display:block;}

.slider2{width:2000px;}
.slider2 li{float:left;}

.num{ position:absolute; right:5px; bottom:5px;}
.num li{
	float: left;
	color: #FF7300;
	text-align: center;
	line-height: 16px;
	width: 16px;
	height: 16px;
	font-family: Arial;
	font-size: 12px;
	cursor: pointer;
	overflow: hidden;
	margin: 3px 1px;
	border: 1px solid #FF7300;
	background-color: #fff;
}
.num li.on{
	color: #fff;
	line-height: 21px;
	width: 21px;
	height: 21px;
	font-size: 16px;
	margin: 0 1px;
	border: 0;
	background-color: #FF7300;
	font-weight: bold;
}
</style>
<div class="container" id="idTransformView">
  <ul class="slider" id="idSlider">
    <li><img src="images/01.jpg"/></li>
    <li><img src="images/02.jpg"/></li>
    <li><img src="images/03.jpg"/></li>
  </ul>
  <ul class="num" id="idNum">
    <li>1</li>
    <li>2</li>
    <li>3</li>
  </ul>
</div>

<br />

<div class="container" id="idTransformView2">
  <ul class="slider slider2" id="idSlider2">
    <li><img src="images/01.jpg"/></li>
    <li><img src="images/02.jpg"/></li>
    <li><img src="images/03.jpg"/></li>
  </ul>
  <ul class="num" id="idNum2">
    <li>1</li>
    <li>2</li>
    <li>3</li>
  </ul>
</div>

<br />

<div>
<input id="idStop" type="button" value=" 停止自动 " />
<input id="idStart" type="button" value=" 开始自动 " />
<br /><br /><input id="idPre" type="button" value=" <- 上一个 " />
<input id="idNext" type="button" value=" 下一个 -> " />
<br /><br />
切换速度：
<input id="idFast" type="button" value=" + 加 速 " />
<input id="idSlow" type="button" value=" - 减 速 " />
<br /><br />
停顿时间：
<input id="idAdd" type="button" value=" + 加时间 " />
<input id="idReduce" type="button" value=" - 减时间 " />
<br /><br />
<input id="idReset" type="button" value=" Reset " />
</div>

<p>
  <script type="text/javascript">
var $ = function (id) {
	return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
  create: function() {
	return function() {
	  this.initialize.apply(this, arguments);
	}
  }
}

Object.extend = function(destination, source) {
	for (var property in source) {
		destination[property] = source[property];
	}
	return destination;
}

var TransformView = Class.create();
TransformView.prototype = {
  //容器对象,滑动对象,切换参数,切换数量
  initialize: function(container, slider, parameter, count, options) {
	if(parameter <= 0 || count <= 0) return;
	var oContainer = $(container), oSlider = $(slider), oThis = this;

	this.Index = 0;//当前索引
	
	this._timer = null;//定时器
	this._slider = oSlider;//滑动对象
	this._parameter = parameter;//切换参数
	this._count = count || 0;//切换数量
	this._target = 0;//目标参数
	
	this.SetOptions(options);
	
	this.Up = !!this.options.Up;
	this.Step = Math.abs(this.options.Step);
	this.Time = Math.abs(this.options.Time);
	this.Auto = !!this.options.Auto;
	this.Pause = Math.abs(this.options.Pause);
	this.onStart = this.options.onStart;
	this.onFinish = this.options.onFinish;
	
	oContainer.style.overflow = "hidden";
	oContainer.style.position = "relative";
	
	oSlider.style.position = "absolute";
	oSlider.style.top = oSlider.style.left = 0;
  },
  //设置默认属性
  SetOptions: function(options) {
	this.options = {//默认值
		Up:			true,//是否向上(否则向左)
		Step:		5,//滑动变化率
		Time:		10,//滑动延时
		Auto:		true,//是否自动转换
		Pause:		2000,//停顿时间(Auto为true时有效)
		onStart:	function(){},//开始转换时执行
		onFinish:	function(){}//完成转换时执行
	};
	Object.extend(this.options, options || {});
  },
  //开始切换设置
  Start: function() {
	if(this.Index < 0){
		this.Index = this._count - 1;
	} else if (this.Index >= this._count){ this.Index = 0; }
	
	this._target = -1 * this._parameter * this.Index;
	this.onStart();
	this.Move();
  },
  //移动
  Move: function() {
	clearTimeout(this._timer);
	var oThis = this, style = this.Up ? "top" : "left", iNow = parseInt(this._slider.style[style]) || 0, iStep = this.GetStep(this._target, iNow);
	
	if (iStep != 0) {
		this._slider.style[style] = (iNow + iStep) + "px";
		this._timer = setTimeout(function(){ oThis.Move(); }, this.Time);
	} else {
		this._slider.style[style] = this._target + "px";
		this.onFinish();
		if (this.Auto) { this._timer = setTimeout(function(){ oThis.Index++; oThis.Start(); }, this.Pause); }
	}
  },
  //获取步长
  GetStep: function(iTarget, iNow) {
	var iStep = (iTarget - iNow) / this.Step;
	if (iStep == 0) return 0;
	if (Math.abs(iStep) < 1) return (iStep > 0 ? 1 : -1);
	return iStep;
  },
  //停止
  Stop: function(iTarget, iNow) {
	clearTimeout(this._timer);
	this._slider.style[this.Up ? "top" : "left"] = this._target + "px";
  }
};

window.onload=function(){
	function Each(list, fun){
		for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
	};
	
	var objs = $("idNum").getElementsByTagName("li");
	
	var tv = new TransformView("idTransformView", "idSlider", 168, 3, {
		onStart : function(){ Each(objs, function(o, i){ o.className = tv.Index == i ? "on" : ""; }) }//按钮样式
	});
	
	tv.Start();
	
	Each(objs, function(o, i){
		o.onmouseover = function(){
			o.className = "on";
			tv.Auto = false;
			tv.Index = i;
			tv.Start();
		}
		o.onmouseout = function(){
			o.className = "";
			tv.Auto = true;
			tv.Start();
		}
	})
	
	////////////////////////test2
	
	var objs2 = $("idNum2").getElementsByTagName("li");
	
	var tv2 = new TransformView("idTransformView2", "idSlider2", 408, 3, {
		onStart: function(){ Each(objs2, function(o, i){ o.className = tv2.Index == i ? "on" : ""; }) },//按钮样式
		Up: false
	});
	
	tv2.Start();
	
	Each(objs2, function(o, i){
		o.onmouseover = function(){
			o.className = "on";
			tv2.Auto = false;
			tv2.Index = i;
			tv2.Start();
		}
		o.onmouseout = function(){
			o.className = "";
			tv2.Auto = true;
			tv2.Start();
		}
	})
	
	$("idStop").onclick = function(){ tv2.Auto = false; tv2.Stop(); }
	$("idStart").onclick = function(){ tv2.Auto = true; tv2.Start(); }
	$("idNext").onclick = function(){ tv2.Index++; tv2.Start(); }
	$("idPre").onclick = function(){ tv2.Index--;tv2.Start(); }
	$("idFast").onclick = function(){ if(--tv2.Step <= 0){tv2.Step = 1;} }
	$("idSlow").onclick = function(){ if(++tv2.Step >= 10){tv2.Step = 10;} }
	$("idReduce").onclick = function(){ tv2.Pause-=1000; if(tv2.Pause <= 0){tv2.Pause = 0;} }
	$("idAdd").onclick = function(){ tv2.Pause+=1000; if(tv2.Pause >= 5000){tv2.Pause = 5000;} }
	
	$("idReset").onclick = function(){
		tv2.Step = Math.abs(tv2.options.Step);
		tv2.Time = Math.abs(tv2.options.Time);
		tv2.Auto = !!tv2.options.Auto;
		tv2.Pause = Math.abs(tv2.options.Pause);
	}
	
}
</script>
</body>
</html>
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