• 2006-04-07

    下雨代码 - [偶有感想]

    版权声明:转载时请以超链接形式标明文章原始出处和作者信息及本声明
    http://siyidao.52blog.net/logs/2287382.html

    <style>
    .drop { position: absolute; width: 10;  filter: flipV(), flipH(); font-size: 40; color: #999999 }
    </style>
    <script language="javascript">

    snow = false;    // false-rain;   true-snow
    snowsym = " ´   "  //These are the symbols for each
    rainsym = "´    "  //You can put images here.
    howmany = 20  //How many drops/snowflakes?

    /**************Do not need to change anything below***********/
    if(snow){sym = snowsym; speed=1; angle=90; drops=howmany}
    else{sym = rainsym; speed=1250; drops=howmany; angle=160}
    movex = -speed/angle; movey = speed; count = 0;

    function moverain(){
    for(move = 0; move < drops; move++){
    xx[move]+=movex;  yy[move]+=mv[move];
    hmm = Math.round(Math.random()*1);
    if(xx[move] < 0){xx[move] = maxx+10;}
    if(yy[move] > maxy){yy[move] = 10;}
    drop[move].left = xx[move]
    drop[move].top = yy[move]+document.body.scrollTop;
    }setTimeout('moverain()','100')}

    </script>
    <script language="javascript">

    if (document.all){
    drop = new Array(); xx = new Array(); yy = new Array(); mv = new Array()
    ly = "document.all[\'"; st = "\'].style"
    for(make = 0; make < drops; make++){
    document.write('<div id="drop'+make+'" class=drop>'+sym+'</div>');
    drop[make] = eval(ly+'drop'+make+st);
    maxx = document.body.clientWidth-1
    maxy = document.body.clientHeight-0
    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/16;
    drop[make].fontSize = (Math.random()*10)+20;
    if(snow){col = 'white'}else{col = '#ffffff'}
    drop[make].color = col;
    }
    window.onload=moverain
    }
    </script>


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