js實作精美的圖片跟隨滑鼠效果實例_javascript技巧-js教程-PHP中文網

js實作精美的圖片跟隨滑鼠效果實例_javascript技巧

WBOY

發布： 2016-05-16 15:58:46

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998 人瀏覽過

本文實例講述了js實現精美的圖片跟隨滑鼠效果實現方法。分享給大家供大家參考。具體實作方法如下：

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>精美js鼠标跟随代码</title>
</head>
<body>
<script> 
A=document.getElementById
B=document.all;
C=document.layers;
T1=new Array("trail1.gif",38,35,"trail2.gif",30,31,"trail3.gif",28,26,"trail4.gif",22,21,"trail5.gif",16,16,"trail6.gif",10,10)
var offsetx=15 
var offsety=10
nos=parseInt(T1.length/3)
rate=50
ie5fix1=0;
ie5fix2=0;
rightedge=B&#63; document.body.clientWidth-T1[1] : window.innerWidth-T1[1]-20
bottomedge=B&#63; document.body.scrollTop+document.body.clientHeight-T1[2] : window.pageYOffset+window.innerHeight-T1[2]
for (i=0;i<nos;i++){
createContainer("CUR"+i,i*10,i*10,i*3+1,i*3+2,"","<img src='"+T1[i*3]+"' width="+T1[(i*3+1)]+" height="+T1[(i*3+2)]+"border=0>")
}
function createContainer(N,Xp,Yp,W,H,At,HT,Op,St){
with (document){
write((!A && !B) &#63; "<layer id='"+N+"' left="+Xp+" top="+Yp+" width="+W+" height="+H : "<div id='"+N+"'"+"style='position:absolute;left:"+Xp+"; top:"+Yp+"; width:"+W+"; height:"+H+"; ");
if(St){
if (C)
write(" style='");
write(St+";' ")
}
else write((A || B)&#63;"'":"");
write((At)&#63; At+">" : ">");
write((HT) &#63; HT : "");
if (!Op)
closeContainer(N)
}
}
function closeContainer(){
document.write((A || B)&#63;"</div>":"</layer>")
}
function getXpos(N){
if (A)
return parseInt(document.getElementById(N).style.left)
else if (B)
return parseInt(B[N].style.left)
else
return C[N].left
}
function getYpos(N){
if (A)
return parseInt(document.getElementById(N).style.top)
else if (B)
return parseInt(B[N].style.top)
else
return C[N].top
}
function moveContainer(N,DX,DY){
c=(A)&#63; document.getElementById(N).style : (B)&#63; B[N].style : (C)&#63; C[N] : "";
if (!B){
rightedge=window.innerWidth-T1[1]-20
bottomedge=window.pageYOffset+window.innerHeight-T1[2]
}
c.left=Math.min(rightedge, DX+offsetx);
c.top=Math.min(bottomedge, DY+offsety);
}
function cycle(){
//if (IE5) 
if (document.all&&window.print){
ie5fix1=document.body.scrollLeft;
ie5fix2=document.body.scrollTop;
}
for (i=0;i<(nos-1);i++){
moveContainer("CUR"+i,getXpos("CUR"+(i+1)),getYpos("CUR"+(i+1)))
}
}
function newPos(e){
moveContainer("CUR"+(nos-1),(B)&#63;event.clientX+ie5fix1:e.pageX+2,(B)&#63;event.clientY+ie5fix2:e.pageY+2)
}
function getedgesIE(){
rightedge=document.body.clientWidth-T1[1]
bottomedge=document.body.scrollHeight-T1[2]
}
if (B){
window.onload=getedgesIE
window.onresize=getedgesIE
}
if(document.layers)
document.captureEvents(Event.MOUSEMOVE)
document.onmousemove=newPos
setInterval("cycle()",rate)
</script>
</body>
</html>

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希望本文所述對大家的javascript程式設計有所幫助。