javascript - 如何将 JavaScript 添加到标记的 HTML 文本中？

Question

我正在尝试创建我认为世界上最糟糕的网站。我想使用标签将一些 JavaScript 添加到一些文本中。我自己尝试了一些方法来解决这个问题，但一直没能解决这个问题。我怎样才能让它发挥作用？

(脚本应该使文本变成彩虹色，顺便说一句)该脚本，包括我的文本:

var text= <marquee>"hello and welcoem to my website"</marquee> // YOUR TEXT
var speed=80 // SPEED OF FADE

// ********** LEAVE THE NEXT BIT ALONE!
var el = document.getElementsByTagName('marquee')[0];
if (document.all||document.getElementById){
document.write('<span id="highlight">' + text + '</span>')
var storetext=document.getElementById? document.getElementById("highlight") : document.all.highlight
}
else
document.write(text)
var hex=new Array("00","14","28","3C","50","64","78","8C","A0","B4","C8","DC","F0")
var r=1
var g=1
var b=1
var seq=1
function changetext(){
rainbow="#"+hex[r]+hex[g]+hex[b]
storetext.style.color=rainbow
}
function change(){
if (seq==6){
b--
if (b==0)
seq=1
}
if (seq==5){
r++
if (r==12)
seq=6
}
if (seq==4){
g--
if (g==0)
seq=5
}
if (seq==3){
b++
if (b==12)
seq=4
}
if (seq==2){
r--
if (r==0)
seq=3
}
if (seq==1){
g++
if (g==12)
seq=2
}
changetext()
}
function starteffect(){
if (document.all||document.getElementById)
flash=setInterval("change()",speed)
}
starteffect()
</script>
</b>

Answer 1

试试这个...适用于 https://codepen.io/cunlay/pen/jOOmaRv

<b>
<script>
var text = "<marquee>hello and welcome to my website</marquee>"; // YOUR TEXT
var speed = 80; // SPEED OF FADE
var r = 1, g = 1, b = 1, seq = 1;
var hex = new Array("00","14","28","3C","50","64","78","8C","A0","B4","C8","DC","F0");
var storetext;

// ********** LEAVE THE NEXT BIT ALONE!
var el = document.getElementsByTagName('marquee')[0];
if (document.all || document.getElementById){
    document.write('<span id="highlight">' + text + '</span>');
}else{
    document.write(text);
}

function changetext(){
    var rainbow = "#"+hex[r]+hex[g]+hex[b];
    storetext = document.getElementById("highlight");
    storetext.style.color = rainbow;
}

function change(){
    if(seq==6){
        b--;
        if(b==0){
            seq=1;
        }       
    }else if (seq==5){
        r++;
        if (r==12){
            seq=6;
        }       
    }else if (seq==4){
        g--;
        if(g==0){
            seq=5;
        }       
    }else if (seq==3){
        b++;
        if (b==12){
            seq=4;
        }       
    }else if (seq==2){
        r--;
        if(r==0){
            seq=3;
        }       
    }else if (seq==1){
        g++;
        if(g==12){
            seq=2;
        }               
    }else {
        return false;
    }   
    changetext();
}
function starteffect(){
    if (document.all || document.getElementById){
        var flash = setInterval("change()",speed);
    }
    return false;
}
starteffect();
</script>
</b>