谁能解释一下黑客帝国背景的代码?
//它数字从上到下的原理是什么？//谢谢！！！
<title>黑客帝国</title>
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<link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />
<body bgcolor="black">
<SCRIPT language=JavaScript>
<!--
if (document.all){
Cols=10;
Cl=48;//Space's are included so real length is 24!
Cs=120;
Ts=18;
Tc='#008800';
Tc1='#00ff00';
MnS=20;
MxS=20;
I=Cs;
Sp=new Array();S=new Array();Y=new Array();
C=new Array();M=new Array();B=new Array();
RC=new Array();E=new Array();Tcc=new Array(0,1,2,3,4,5,6,7,8,9);
document.write("<div id='Container' style='position:absolute;top:0;left:-"+Cs+"'>");
document.write("<div style='position:relative'>");
for(i=0; i < Cols; i++){
S[i]=I+=Cs;
document.write("<div id='A' style='position:absolute;top:0;font-family:Arial;font-size:"
+Ts+"px;left:"+S[i]+";width:"+Ts+"px;height:0px;color:"+Tc+";visibility:hidden'></div>");
}
document.write("</div></div>");
for(j=0; j < Cols; j++){
RC[j]=1+Math.round(Math.random()*Cl);
Y[j]=0;
Sp[j]=Math.round(MnS+Math.random()*MxS);
for(i=0; i < RC[j]; i++){
B[i]='';
C[i]=Math.round(Math.random()*1)+' ';
M[j]=B[0]+=C[i];
}
}
function Cycle(){
Container.style.top=window.document.body.scrollTop;
for (i=0; i < Cols; i++){
var r = Math.floor(Math.random()*Tcc.length);
E[i] = '<font color='+Tc1+'>'+Tcc[r]+'</font>';
Y[i]+=Sp[i];
if (Y[i] > window.document.body.clientHeight){
for(i2=0; i2 < Cols; i2++){
RC[i2]=1+Math.round(Math.random()*Cl);
for(i3=0; i3 < RC[i2]; i3++){
B[i3]='';
C[i3]=Math.round(Math.random()*1)+' ';
C[Math.floor(Math.random()*i2)]=' '+' ';
M[i]=B[0]+=C[i3];
Y[i]=-Ts*M[i].length/1.5;
A[i].style.visibility='visible';
}
Sp[i]=Math.round(MnS+Math.random()*MxS);
}
}
A[i].style.top=Y[i];
A[i].innerHTML=M[i]+' '+E[i]+' ';
}
setTimeout('Cycle()',45)
}
Cycle();
}
// -->
</SCRIPT>
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<SCRIPT language=javascript><!--
function runClock() {
theTime = window.setTimeout("runClock()", 100);
var today = new Date();
var display= today.toLocaleString();
window.status="当前时间："+display;
}runClock();
//-->
</SCRIPT>
</body>
