原代码插入到<body>下面:<script language="JavaScript"> <!-- N = 40; Y = new Array(); X = new Array(); S = new Array(); A = new Array(); B = new Array(); M = new Array(); V = (document.layers)?1:0; iH=(document.layers)?window.innerHeight:window.document.body.clientHeight; iW=(document.layers)?window.innerWidth:window.document.body.clientWidth; for (i=0; i < N; i++){ Y[i]=Math.round(Math.random()*iH); X[i]=Math.round(Math.random()*iW); S[i]=Math.round(Math.random()*5+2); A[i]=0; B[i]=Math.random()*0.1+0.1; M[i]=Math.round(Math.random()*1+1); } if (V){ for (i = 0; i < N; i++) {document.write("<LAYER NAME=sn"+i+" LEFT=0 TOP=0 BGCOLOR=#FFFFF0 CLIP=0,0,"+M[i]+","+M[i]+"></LAYER>")} } else{ document.write(<div style="position:absolute;top:0px;left:0px">); document.write(<div style="position:relative">); for (i = 0; i < N; i++) {document.write(<div id="si" style="position:absolute;top:0;left:0;width:+M[i]+;height:+M[i]+;background:#fffff0;font-size:+M[i]+"></div>)} document.write(</div></div>); } function snow(){ var H=(document.layers)?window.innerHeight:window.document.body.clientHeight; var W=(document.layers)?window.innerWidth:window.document.body.clientWidth; var T=(document.layers)?window.pageYOffset:document.body.scrollTop; var L=(document.layers)?window.pageXOffset:document.body.scrollLeft; for (i=0; i < N; i++){ sy=S[i]*Math.sin(90*Math.PI/180); sx=S[i]*Math.cos(A[i]); Y[i]+=sy; X[i]+=sx; if (Y[i] > H){ Y[i]=-10; X[i]=Math.round(Math.random()*W); M[i]=Math.round(Math.random()*1+1); S[i]=Math.round(Math.random()*5+2); } if (V){document.layers[sn+i].left=X[i];document.layers[sn+i].top=Y[i]+T} else{si[i].style.pixelLeft=X[i];si[i].style.pixelTop=Y[i]+T} A[i]+=B[i]; } setTimeout(snow(),10); } //--> </script> 把<body>中的内容改为： <body bgcolor=#ffffff onLoad="snow()">
以上就是Javascript设计漫天雪花，希望大家喜欢，请继续关注乐呵呵网。