在网页中实现图片播放

来源：互联网发布：pat知乎编辑：程序博客网时间：2024/06/05 03:14
<html><head><title>图片播放</title></head><body> <script type="text/javascript"> var $$ = function (id) { return "string" == typeof id ? document.getElementById(id) : id;};var Extend = function(destination, source) { for (var property in source) {  destination[property] = source[property]; } return destination;}var CurrentStyle = function(element){ return element.currentStyle || document.defaultView.getComputedStyle(element, null);}var Bind = function(object, fun) { var args = Array.prototype.slice.call(arguments).slice(2); return function() {  return fun.apply(object, args.concat(Array.prototype.slice.call(arguments))); }}var forEach = function(array, callback, thisObject){ if(array.forEach){  array.forEach(callback, thisObject); }else{  for (var i = 0, len = array.length; i < len; i++) { callback.call(thisObject, array[i], i, array); } }}var Tween = { Quart: {  easeOut: function(t,b,c,d){   return -c * ((t=t/d-1)*t*t*t - 1) + b;  } }, Back: {  easeOut: function(t,b,c,d,s){   if (s == undefined) s = 1.70158;   return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;  } }, Bounce: {  easeOut: function(t,b,c,d){   if ((t/=d) < (1/2.75)) {    return c*(7.5625*t*t) + b;   } else if (t < (2/2.75)) {    return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;   } else if (t < (2.5/2.75)) {    return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;   } else {    return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;   }  } }} //容器对象,滑动对象,切换数量var SlideTrans = function(container, slider, count, options) { this._slider = $$(slider); this._container = $$(container);//容器对象 this._timer = null;//定时器 this._count = Math.abs(count);//切换数量 this._target = 0;//目标值 this._t = this._b = this._c = 0;//tween参数  this.Index = 0;//当前索引  this.SetOptions(options);  this.Auto = !!this.options.Auto; this.Duration = Math.abs(this.options.Duration); this.Time = Math.abs(this.options.Time); this.Pause = Math.abs(this.options.Pause); this.Tween = this.options.Tween; this.onStart = this.options.onStart; this.onFinish = this.options.onFinish;  var bVertical = !!this.options.Vertical; this._css = bVertical ? "top" : "left";//方向  //样式设置 var p = CurrentStyle(this._container).position; p == "relative" || p == "absolute" || (this._container.style.position = "relative"); this._container.style.overflow = "hidden"; this._slider.style.position = "absolute";  this.Change = this.options.Change ? this.options.Change :  this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count;};SlideTrans.prototype = {  //设置默认属性  SetOptions: function(options) { this.options = {//默认值  Vertical: true,//是否垂直方向（方向不能改）  Auto:  true,//是否自动  Change:  0,//改变量  Duration: 10,//滑动持续时间  Time:  30,//滑动延时  Pause:  3000,//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  Tween:  Tween.Quart.easeOut//tween算子 }; Extend(this.options, options || {});  },  //开始切换  Run: function(index) { //修正index index == undefined && (index = this.Index); index < 0 && (index = this._count - 1) || index >= this._count && (index = 0); //设置参数 this._target = -Math.abs(this.Change) * (this.Index = index); this._t = 0; this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]); this._c = this._target - this._b;  this.onStart(); this.Move();  },  //移动  Move: function() { clearTimeout(this._timer); //未到达目标继续移动否则进行下一次滑动 if (this._c && this._t < this.Duration) {  this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration)));  this._timer = setTimeout(Bind(this, this.Move), this.Time); }else{  this.MoveTo(this._target);  this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause)); }  },  //移动到  MoveTo: function(i) { this._slider.style[this._css] = i + "px";  },  //下一个  Next: function() { this.Run(++this.Index);  },  //上一个  Previous: function() { this.Run(--this.Index);  },  //停止  Stop: function() { clearTimeout(this._timer); this.MoveTo(this._target);  }};</script> <style type="text/css"> .container, .container img{width:280px; height:200px;}.container img{border:0;display:block;}</style><div class="container" id="idContainer"> <table id="idSlider" border="0" cellpadding="0" cellspacing="0">  <tr>   <td><a ><img src="1.jpg"/  alt="" /></a></td>   <td><a ><img src="2.jpg"/  alt="" /></a></td>      <td><a ><img src="4.jpg"/  alt="" /></a></td>   <td><a ><img src="3.jpg"/  alt="" /></a></td>  </tr> </table></div><script> new SlideTrans("idContainer", "idSlider", 4, { Vertical: false }).Run();</script><br /><style type="text/css"> .container ul, .container li{list-style:none;margin:0;padding:0;*display:inline;}.num{ position:absolute; right:5px; bottom:5px; font:12px/1.5 tahoma, arial; height:18px;}.num li{ float: left; color: #d94b01; text-align: center; line-height: 16px; width: 16px; height: 16px; font-family: Arial; font-size: 11px; cursor: pointer; margin-left: 3px; border: 1px solid #f47500; background-color: #fcf2cf;}.num li.on{ line-height: 18px; width: 18px; height: 18px; font-size: 14px; margin-top:-2px; background-color: #ff9415; font-weight: bold; color:#FFF;}</style></body></html>
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