代码如下： <!--脚本说明：第一步:把如下代码加入<head>区域中:--> <script language="JavaScript"> <!-- //下面是在屏幕上飞的字 var message = "welcom"; //下面是字飞过后出现的正文 var finalmessage = "看到效果了吗?"; /*--------------------------------------------------------------------------*/ /*以下的可选择使用*/ //下面是飞字的条数，取1--10之间，本页取的是10 var noOfFlyers = 10; //下面是每条飞字的颜色，注意：条数是多少，即对应几条颜色 var blkCol = new Array("black","blue","red","green","blue","blue","red","black","red","green"); //下面是每条飞字的字体，注意：条数是多少，即对应几条字体 var blkFont = new Array("arial","timesroman","courier","verdana","timesroman","courier","arial","timesroman","courier","verdana"); //下面是每条飞字的大小，建议在10-32之间，注意：条数是多少，即对应几条大小 var blkSize = new Array("22","14","10","28","29","10","22","24","26","10"); //下面是定义每条飞字是否斜体，注意：条数是多少，即对应几条信息 var blkIt = new Array("0","0","1","0","0","1","1","0","1","1"); /*--------------------------------------------------------------------------*/ /*请不要轻易修改以下代码*/ var ie=document.all?1:0 var ns=document.layers?1:0 var err = 0; var msgI=1; var noOfMsgs; function initialize() { if(!ns&&!ie) { document.writeln("<center>"+finalmessage+"</center>"); document.writeln("<P><P><font face='arial' size=2>You are missing out on all the coolest stuff because of your outdated browser. Upgrade soon.</font>"); err=1; return; } if(noOfFlyers<1||noOfFlyers>10) {handleErr("The number of flying blocks has been assigned an invalid value. Script will terminate.");return} if(blkCol.length!=noOfFlyers) {handleErr("The list of block colours has an invalid length. Script will terminate.");return} if(blkFont.length!=noOfFlyers) {handleErr("The list of block fonts has an invalid length. Script will terminate.");return} if(blkSize.length!=noOfFlyers) {handleErr("The list of block font sizes has an invalid length. Script will terminate.");return} self.moveTo(0,0); self.resizeTo(screen.width,screen.height); var msg = new String(message); aOMsgs = msg.split(" "); noOfMsgs = aOMsgs.length+1; for(var i = 0; i<aOMsgs.length; i++) { for(var j = 1; j<=noOfFlyers; j++) { if(ie) document.writeln("<div id=\"fly"+String((i*noOfFlyers)+j)+"\" class=\"fly"+String(j)+"\" style=\"visibility:hidden\">"+aOMsgs[i]+"</div>"); if(ns) document.writeln("<layer id=\"fly"+String((i*noOfFlyers)+j)+"\" class=\"fly"+String(j)+"\" visibility=\"hidden\">"+aOMsgs[i]+"</layer>"); } } if(ie) document.write("<div id=\"mesg\" style=\"position:relative;color:black;visibility:hidden;font-family:arial;\"><center>"+finalmessage+"</center></div>"); if(ns) document.write("<layer id=\"mesg\" class=\"mesg\" visibility=\"hidden\"><center>"+finalmessage+"</center></layer>"); } var msgCol=0; function stop_flying() { if(ie){ document.all.mesg.style.visibility="visible"; document.all.mesg.style.color="rgb("+String(msgCol)+","+String(msgCol)+","+String(msgCol)+")"; } if(ns){ setTimeout("document.layers['mesg'].visibility='visible'",1000); return; } msgCol+=10; if(msgCol<256) setTimeout("stop_flying()",10); else return; } function fly_txt(dataID) { this.objID = dataID; var screen_x = screen.width; var screen_y = screen.height; var window_x = 0.9*screen_x; var window_y = 0.6*screen_y; var x; x=0.6*Math.random(); if(x>0.3) x+=0.4; this.start_x = Math.round(window_x*x); this.start_y = Math.round(window_y*Math.random()); if(x>0.3) x=0.3*Math.random(); else x=0.7+0.3*Math.random(); this.stop_x = Math.round(window_x*x); this.stop_y = Math.round(window_y*Math.random()); this.slope = (this.stop_y - this.start_y)/(this.stop_x - this.start_x); this.speed = Math.round(Math.random()*2)+4; if(ns) this.speed-=2; this.steps = Math.round(Math.abs(this.start_x-this.stop_x)/this.speed); this.curCol = 0; this.curI = 0; this.timerID = 0; if(ie) this.objStyle = eval("document.all(\""+this.objID+"\").style"); if(ns) this.objStyle = eval("document.layers[\""+this.objID+"\"]"); var tmp = (parseInt(dataID.substring(3))-1)%noOfFlyers; if(ie) { this.color=blkCol[tmp]; this.objStyle.fontFamily=blkFont[tmp]; this.objStyle.fontSize=blkSize[tmp]+"pt"; this.objStyle.fontStyle=(parseInt(blkIt[tmp])?"italic":"normal"); } this.Animate = animate_fly; } function animate_fly() { if(ie){ this.objStyle.pixelLeft = this.start_x+this.curI; this.objStyle.pixelTop = (this.slope*this.curI) + this.start_y; } if(ns){ this.objStyle.left = this.start_x+this.curI; this.objStyle.top = (this.slope*this.curI) + this.start_y; } this.objStyle.visibility="visible"; if(this.stop_x>this.start_x) this.curI+=this.speed; else this.curI-=this.speed; if(ie){ var tmp; switch(this.color){ case "white": tmp=String("rgb("+String(this.curCol)+","+String(this.curCol)+","+String(this.curCol)+")"); break; case "red": tmp=String("rgb("+String(this.curCol)+",0,0)"); break; case "blue": tmp=String("rgb(0,0,"+String(this.curCol)+")"); break; case "green": tmp=String("rgb(0,"+String(this.curCol)+",0)"); break; default: } this.objStyle.color=tmp; if(this.steps>50){ if(Math.abs(this.curI/this.speed)<25) this.curCol+=10; if(Math.abs(this.curI/this.speed)>(this.steps-25)) this.curCol-=5; } } if(Math.abs(this.start_x+this.curI-this.stop_x)<=this.speed) { clearInterval(this.timerID); this.timerID=0; this.objStyle.visibility="hidden"; var end=0; for(var i=1; i<=noOfFlyers; i++) if(fly[i].timerID) end=1; if(!end) if(msgI<noOfMsgs) start_flying(msgI++); else stop_flying(); } } var fly = new Array(11); function start_flying(msgIndex) { if(err) return; for(var s=1; s<=noOfFlyers; s++) { fly[s] = new fly_txt("fly"+String((msgIndex-1)*noOfFlyers+s)); } for(s=1;s<=noOfFlyers;s++) { var cmd = "fly["+s+"].Animate()"; fly[s].timerID = setInterval(cmd,10); } } function handleErr(errMsg) { alert(errMsg); err=1; return false; } //--> </script> <style type="text/css"> <!-- .fly1 {position:absolute;font-family:arial;font-size:22pt;font-weight:bold;color:white;} .fly2 {position:absolute;font-family:timesroman;font-size:24pt;font-weight:bold;color:white;} .fly3 {position:absolute;font-family:gothic;font-size:26pt;font-weight:bold;color:white;} .fly4 {position:absolute;font-family:arial;font-size:28pt;font-weight:bold;color:white;} .fly5 {position:absolute;font-family:courier;font-size:29pt;font-weight:bold;color:white;} .fly6 {position:absolute;font-family:arial;font-size:22pt;font-weight:bold;color:white;} .fly7 {position:absolute;font-family:timesroman;font-size:20pt;font-weight:bold;color:white;} .fly8 {position:absolute;font-family:gothic;font-size:22pt;font-weight:bold;color:white;} .fly9 {position:absolute;font-family:arial;font-size:24pt;font-weight:bold;color:white;} .fly10 {position:absolute;font-family:courier;font-size:25pt;font-weight:bold;color:white;} .mesg {position:relative;color:white;font-family:arial;} --> </style> <style type="text/javascript"> for(var k = 1; k<=noOfFlyers; k++){ document.classes["fly"+String(k)].all.color=blkCol[k-1]; document.classes["fly"+String(k)].all.fontFamily=blkFont[k-1]; document.classes["fly"+String(k)].all.fontSize=blkSize[k-1]+"pt"; document.classes["fly"+String(k)].all.fontStyle=(parseInt(blkIt[k-1])?"italic":"normal"); } </style> <!--第二步:把<body>中加入如下代码：--> <body bgcolor="#ffffff" text="#000000" onLoad="start_flying(msgI++)"> <script language = "JavaScript"> <!-- initialize(); //--> </script>
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