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javascript实例 —指针式时钟

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2007-07-06 15:49

<html>
<head>
<title>
时钟
</title>
<SCRIPT language=javascript>
<!--
pX=400;pY=200
obs = new Array(13)
function ob () {
for (i=0; i<13; i++) {
     if (document.all) obs[i]=new Array (eval('ob'+i).style,-100,-100)
     else obs[i] = new Array (eval('document.ob'+i),-100,-100)
     }
}
function cl(a,b,c){
     if (document.all) {
         if (a!=0) b+=-1
         eval('c'+a+'.style.pixelTop='+(pY+(c)))
         eval('c'+a+'.style.pixelLeft='+(pX+(b)))
         }
else{
     if (a!=0) b+=10
     eval('document.c'+a+'.top='+(pY+(c)))
     eval('document.c'+a+'.left='+(pX+(b)))
}
if (document.all) c0.style.pixelLeft=26
}

function runClock() {
     for (i=0; i<13; i++) {
         obs[i][0].left=obs[i][1]+pX
         obs[i][0].top=obs[i][2]+pY
     }
}

var lastsec
function timer() {
     time = new Date ()
     sec = time.getSeconds()
     if (sec!=lastsec) {

         lastsec = sec
         sec=Math.PI*sec/30
         min=Math.PI*time.getMinutes()/30
         hr =Math.PI*((time.getHours()*60)+time.getMinutes())/360
         for (i=1;i<6;i++) {
             obs[i][1] = Math.sin(sec) * (44 - (i-1)*11)-16;
             if (document.layers)obs[i][1]+=10;
             obs[i][2] = -Math.cos(sec) * (44 - (i-1)*11)-27;
         }
         for (i=6;i<10;i++) {
             obs[i][1] = Math.sin(min) * (40 - (i-6)*10)-16;
             if (document.layers)obs[i][1]+=10;
             obs[i][2] = -Math.cos(min) * (40 - (i-6)*10)-27;
         }
         for (i=10;i<13;i++) {
             obs[i][1] = Math.sin(hr) * (37 - (i-10)*11)-16;
             if (document.layers)obs[i][1]+=10;
             obs[i][2] = -Math.cos(hr) * (37 - (i-10)*11)-27;
         }
     }

}
function setNum(){

cl (0,-67,-65);
cl (1,10,-51);
cl (2,28,-33);
cl (3,35,-8);
cl (4,28,17);
cl (5,10,35);
cl (6,-15,42);
cl (7,-40,35);
cl (8,-58,17);
cl (9,-65,-8);
cl (10,-58,-33);
cl (11,-40,-51);
cl (12,-16,-56);

}

//-->

</SCRIPT>

</head>

</body>
</html>

作者：玄魂
出处：http://www.cnblogs.com/xuanhun/
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原文地址：https://www.cnblogs.com/xuanhun/p/1662433.html