%26lt;!-- 完整的HTML代码是: --%26gt;
%26lt;html%26gt;
%26lt;head%26gt;
%26lt;style%26gt;
.drop { position: absolute; width: 3; filter: flipV(), flipH();
font-size: 40; color: blue }
%26lt;/style%26gt;
%26lt;script language="javascript"%26gt;
snow = false; // false-雨; true-雪
snowsym = " * " //这是符号
rainsym = " ' " //这儿可以放图片.
howmany = 10 //雨滴多少/雪片?
/**************不要给变下面的参数***********/
if(snow){sym = snowsym; speed=1; angle=10; drops=howmany}
else{sym = rainsym; speed=50; drops=howmany; angle=6}
movex = -speed/angle; movey = speed; count = 0;
function moverain(){
for(move = 0; move %26lt; drops; move++){
xx[move]+=movex; yy[move]+=mv[move];
hmm = Math.round(Math.random()*1);
if(xx[move] %26lt; 0){xx[move] = maxx+10;}
if(yy[move] %26gt; maxy){yy[move] = 10;}
drop[move].left = xx[move]
drop[move].top = yy[move]+document.body.scrollTop;
}setTimeout('moverain()','1')}
%26lt;/script%26gt;
%26lt;/head%26gt;
%26lt;body bgcolor=#000000%26gt;
%26lt;script language="javascript"%26gt;
if (document.all){
drop = new Array(); xx = new Array(); yy = new Array(); mv = new
Array()
ly = "document.all[\'"; st = "\'].style"
for(make = 0; make %26lt; drops; make++){
document.write('%26lt;div id="drop'+make+'" class=drop%26gt;'+sym+'%26lt;/div%26gt;');
drop[make] = eval(ly+'drop'+make+st);
maxx = document.body.clientWidth-40
maxy = document.body.clientHeight-40
xx[make] = Math.random()*maxx;
yy[make] = -100-Math.random()*maxy;
drop[make].left = xx[make]
drop[make].top = yy[make]
mv[make] = (Math.random()*5)+speed/4;
drop[make].fontSize = (Math.random()*10)+20;
if(snow){col = 'white'}else{col = 'blue'}
drop[make].color = col;
}
window.onload=moverain
}
%26lt;/script%26gt;
%26lt;/body%26gt;
%26lt;/html%26gt;