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多图展示点击切换效果模拟的flash效果，点小图放大显示，再点恢复默认。

时间：2021-07-01 10:21:17 帮助过：7人阅读

<base href='http://demo.rexsong.com/200507/image_onclick_switch/'>
<!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" xml:lang="zh" lang="zh-cn"> 
<head> 
<title>类似于Flash制作的一个图片展示效果</title> 
<meta name="Author" content="http://www.webjx.com"> 
<meta http-equiv="imagetoolbar" content="no"> 
<style type="text/css"> 
 html,body {cursor:crosshair;margin:0; padding:0; position:absolute; overflow:hidden; background:#222; left:0; top:0; width:100%; height:100%;zIndex:-2;} 
</style>

window.onerror = new Function("return true"); 
screen.bufferDepth = 16; 
document.onselectstart = function () { return false; }

//////////////////////////// 
var NX     = 3; 
var NY     = 3; 
var SP     = 20; 
var DELAY  = 96; 
////////////////////////////

var object = new Array(); 
var nI     = 0; 
var run    = false; 
var xrun   = 0; 
var dR     = 1; 
var iW     = 0; 
var iH     = 0; 
var oH     = 0; 
var oW     = 0;

function CObj(N,y,x){

this.obj = document.createElement("span"); 
 this.obj.onclick = new Function("object["+N+"].GE1()"); 
 this.obj.onmousedown = new Function("return false;"); 
 this.obj.style.cursor = "pointer"; 
 this.obj.style.position = "absolute"; 
 this.img = document.createElement("img"); 
 this.img.style.position = "absolute"; 
 this.img.src = IMGSRC[N%nI].src; 
 this.obj.appendChild(this.img); 
 IMGBOX.appendChild(this.obj);

this.object = new Array(); 
 this.x      = x; 
 this.y      = y; 
 this.N      = N; 
 this.W      = 0; 
 this.H      = 0; 
 this.L      = 0; 
 this.T      = 0;

function CImg(Parent,y,x){ 
  this.Parent = Parent;

this.obj = document.createElement("span"); 
  this.obj.style.position="absolute"; 
  this.obj.style.overflow="hidden"; 
  this.obj.style.cursor = "pointer"; 
  this.img = document.createElement("img"); 
  this.img.style.position = "absolute"; 
  this.img.src = IMGSRC[N%nI].src; 
  this.obj.appendChild(this.img); 
  this.Parent.obj.appendChild(this.obj);

this.N   = Parent.N; 
  this.x   = x; 
  this.y   = y; 
  this.W   = 0; 
  this.H   = 0; 
  this.L   = 0; 
  this.T   = 0; 
  this.dx  = 0; 
  this.dy  = 0; 
  this.px  = 0; 
  this.py  = 0; 
  this.dw  = 0; 
  this.dh  = 0; 
  this.pw  = 0; 
  this.ph  = 0; 
  this.ipx = 0; 
  this.ipy = 0; 
  this.idx = 0; 
  this.idy = 0;

this.GE2 = function (){ 
   with(this){ 
    px -= dx * dR; 
    py -= dy * dR; 
    pw += dw * dR; 
    ph += dh * dR; 
    ipx -= idx * dR; 
    ipy -= idy * dR;

with(obj.style){ 
     left   = Math.round(px); 
     top    = Math.round(py); 
     width  = Math.round(pw)+1; 
     height = Math.round(ph)+1; 
     if(dR==-1)if(pw<=W+1)obj.style.visibility="hidden"; 
    }

with(img.style){ 
     left   = Math.round(ipx-oW); 
     top    = Math.round(ipy-oH); 
    }

if(++xrun>=NX*NY*SP){ 
     xrun=0; 
     run=false; 
     if(dR==-1)Parent.obj.style.zIndex = 0; 
     dR = -dR; 
    } 
   } 
  }

this.GE1 = function (N1,N2){ 
   with(this){ 
    if(dR==1){ 
     px  = L; 
     py  = T; 
     dx  = ((Parent.L + L) - (x * Parent.W)) / SP; 
     dy  = ((Parent.T + T) - (y * Parent.H)) / SP; 
     pw  = W; 
     ph  = H; 
     dw  = (Parent.W - W) / SP; 
     dh  = (Parent.H - H) / SP; 
     ipx = -L; 
     ipy = -T; 
     idx = ((x * Parent.W) - L) / SP; 
     idy = ((y * Parent.H) - T) / SP; 
    } 
    obj.style.visibility="visible"; 
    if(img.height>document.body.offsetHeight)oH=(img.height-document.body.offsetHeight)/2; else oH = 0; 
    if(img.width>document.body.offsetWidth/2)oW=(img.width-(document.body.offsetWidth/2))/2; else oW = 0; 
    for(i=0;i<SP;i++) setTimeout("object["+N1+"].object["+N2+"].GE2()",16*i); 
   } 
  }

this.DOOT = function (){ 
   with(this){ 
    W =  Parent.W  / NX; 
    H =  Parent.H / NY; 
    L =  x * W; 
    T =  y * H; 
   } 
  } 
 }

var  k = 0; 
 for(var i=0;i<NY;i++) 
  for(var j=0;j<NX;j++) 
   this.object[k++] = new CImg(this,i,j);

this.GE1  = function (){ 
  with(this){ 
   if(!run){ 
    TXTBOX.innerHTML = ""+TXTSRC[N%nI].innerHTML+""; 
    run = true; 
    obj.style.zIndex = 1; 
    for(var i=0;i<NX*NY;i++) setTimeout("object["+N+"].object["+i+"].GE1("+N+","+i+")",i*DELAY); 
   } 
  } 
 }

this.DOOT = function (){ 
  with(this){ 
   if(img.width<iW)iW=img.width; 
   if(img.height<iH)iH=img.height; 
   with(obj.style){ 
    W = width  = iW  / NX; 
    H = height = iH / NY; 
    L = left   = x * W; 
    T = top    = y * H; 
   } 
   with(img.style){ 
    width  = W; 
    height = H; 
   } 
   for(var i in object) object[i].DOOT(); 
  } 
 } 
}

onload = function() { 
 IMGSRC = document.getElementById("imgsrc").getElementsByTagName("img"); 
 TXTSRC = document.getElementById("txtsrc").getElementsByTagName("div"); 
 IMGBOX = document.getElementById("imgbox"); 
 TXTBOX = document.getElementById("txtbox"); 
 CENTER = document.getElementById("center"); 
 iH = document.body.offsetHeight; 
 iW = document.body.offsetWidth/2; 
 nI = IMGSRC.length; 
 var k = 0; 
 for(var i=0;i<NY;i++){ 
  for(var j=0;j<NX;j++){ 
   object[k] = new CObj(k,i,j); 
   object[k++].DOOT(); 
  } 
 } 
 IMGBOX.style.width  = iW; 
 IMGBOX.style.height = iH; 
 TXTBOX.style.width  = iW; 
 TXTBOX.style.height = iH; 
 TXTBOX.style.left   = iW; 
 TXTBOX.style.visibility="visible"; 
 CENTER.style.left   = -iW; 
 CENTER.style.top    = -iH/2; 
} 
//--> 
</script> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
</head>

<body>

<h2>IMGBOX</h2>Click the thumbnails on the left for a larger image. The description connected to the clicked image is displayed here.
 
  
Note: for performance reasons, images are not resized and must be all of the same size.

<h2>the river</h2>
Awaken from my nap by the river 
  
  
  <h2>transparency</h2>
Its transparency was hypnotizing. 
  
  
  <h2>cold</h2>
Currents of cold water played with light. 
  
  
  <h2>sank in</h2>
I threw a few nuts into the river. They floated for a while, then sank in. 
  
  
  <h2>masked</h2>
A wide stepping stone masked the water's depth. 
  
  
  <h2>a glimpse</h2>
Later on, I had a glimpse of the river's bed. 
  
  
  <h2>forgotten</h2>
The wheelchair made a noise. Again, I had forgotten about my legs. 
  
  
  <h2>floated</h2>
Still, I floated in oblivion of things too real. 
  
  
  <h2>for me</h2>
I stared fixedly at the water's open arms. The stream was singing for me.

<span id=LB0 style="position:absolute;left:50%;top:50%;"> 
    <span style="position:absolute;font-family:arial;font-size:10px;color:#FFFFFF;left:-50;top:-18">Loading...</span> 
    <span style="position:absolute;left:-50;top:-5;font-size:1px;width:100;height:10px;background:#333"> 
        <span id=LB1 style="position:absolute;left:0;top:0;font-size:1px;width:0;height:10px;background:#FFFFFF"></span> 
    </span> 
</span> 
<script> 
m00=document.getElementById("imgsrc").getElementsByTagName("img"); 
m01=m00.length;function images_loading_bar(){m02=0; 
for(i=0;i<m01;i++)m02+=(m00[i].complete)?1:0; 
document.getElementById("LB1").style.width=Math.round(m02/m01*100); 
if(m02==m01)setTimeout("document.getElementById('LB0').style.display='none'",128); 
else setTimeout("images_loading_bar()", 64);}; 
images_loading_bar(); 
</script>

</body> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

多图展示点击切换效果模拟的flash效果，点小图放大显示，再点恢复默认。

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