以下代码放在HTML的<body></body>之间[适当的位置]：
<script language=javascript>
var layers =document.layers,style=document.all,both=layers||style,idme=908601
if(layers){layerRef='document.layers'styleRef =''}if(style){layerRef='document.all'styleRef =
'.style'}
function writeOnText(obj,str){
if(layers)with(document[obj]){ document.open()document.write(str)document.close()}
if(style)eval(obj+'.innerHTML=str')}
var dispStr=new Array("这里是你想要打的字")
var overMe=0
function txtTyper(str,idx,idObj,spObj,clr1,clr2,delay,plysnd){
var tmp0=tmp1= '',skip=100
if (both &&idx<=str.length) {
if (str.charAt(idx)=='<'){ while(str.charAt(idx)!='>') idx++idx++}
if (str.charAt(idx)=='&'&&str.charAt(idx+1)!=' '){ while (str.charAt(idx)!= '')idx++idx++}
tmp0 = str.slice(0,idx)
tmp1 = str.charAt(idx++)
if (overMe==0 &&plysnd==1){
if (navigator.plugins[0]){
if(navigator.plugins["LiveAudio"][0].type=="audio/basic" &&navigator.javaEnabled()){document.embeds
[0].stop()
setTimeout("document.embeds[0].play(false)",100)}
} else if (document.all){
ding.Stop()
setTimeout("ding.Run()",100)}
overMe=1}else overMe=0
writeOnText(idObj, "<span class="+spObj+"><font color='"+clr1+"'>"+tmp0+"</font><font color='"+clr2
+"'>"+tmp1+"</font></span>")
setTimeout("txtTyper('"+str+"', "+idx+", '"+idObj+"', '"+spObj+"', '"+clr1+"', '"+clr2+"', "+delay+" ,"+plysnd+")",delay)}}
function init(){txtTyper(dispStr[0], 0, 'ttl0', 'ttl1', '#339933', '#99FF33', 300, 0)}
</script>
<BODY onload=init()>
<DIV class=ttl1 id=ttl0></DIV>
</BODY>
源码：逐字出来的效果，哈哈哈哈哈哈哈哈哈
var index = 0
var str = document.getElementById("string").innerHTML
setInterval(function() {
if(index == str.length) {
//清除定时器
clearInterval()
//若要让效果无限循环，把index归0即可
// index = 0
}
var a = document.getElementById("showStr")
a.innerText = str.substring(0, index++)
},400)
<marquee>向左移动
</marquee>
<marquee direction="right">
向右移动
</marquee>
<marquee direction="right" behavior="alternate">
来回移动
</marquee>
<marquee direction="right" loop="3">
移动3次
</marquee>
<marquee direction="right" scrollamount="1">
看我走多块（scrollamount=“值”）值越大，速度越快
</marquee>
<marquee direction="right" scrolldelay="1000">
看我走多块scrolldelay=“值”）1000毫秒=1秒 这是1秒移动一次
</marquee>
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