大家能帮我看一下么，关于随机的问题问题还是有点难

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大约题目是这个样子，关于随机数字跟随机符号这个方面还是有一些不懂。

给出的答案是大约这个样子的

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写一个随机生成两位数的js
接着用一个变量记录每次乘的结果
然后给开始按钮绑定个时事件，点击后获取输入框的数字，并开始循环进行相乘
就这三个步骤

新手版：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
 
<body>
 
<input type="text" id="inputNum" placeholder="请输入数字">
<button onclick="startAndStop(true)">开始</button>
<button onclick="startAndStop(false)">停止</button>
 
<ul id="content">
   
</ul>
 
<script type="text/javascript">
 
let IntervalId;
let emojArr = ['🍐', '🍑', '🍒', '🍓', '🥝', '🍅', '🥥', '🥑','🍆']
 
function randomNum (){
   return Math.floor(Math.random() * 99 + 1);
}
 
function startAndStop(flag){
 if(flag){
    let content = document.getElementById("content")
    let sum = randomNum()
    document.getElementById("content").innerHTML = ""
    <!-- 开始循环计算输出 -->
    let time = 0;
    IntervalId =setInterval(function(){
    time = time + 1;
    let startEmoj = getIcon(time)
    let endEmoj = emojArr[Math.floor((Math.random()*emojArr .length))]
    let inputNum = document.getElementById("inputNum").value
    content.append(startEmoj + inputNum + "*" + sum + "=" +  (inputNum * sum) + endEmoj  )
    content.append(document.createElement("br"));
    sum = (inputNum * sum)
    },1.5*1000)
 }else{
   document.getElementById("inputNum").value  = ""
   clearInterval(IntervalId )
 }
}


//随机获取图标
function getIcon(time){
  let getIcon = ""
  for(let i=0; i<time; i++){
    getIcon = getIcon + (emojArr[Math.floor((Math.random()*emojArr .length))])
  }
  return getIcon;
}
 
</script>
</body>
</html>

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <p>
        Multiplier: <input type="text" id="multipleNum" placeholder="请输入乘数">
    </p>
    <p>
        <button onClick="start()">Start</button>
        <button  onClick="stop()">Stop</button>
    </p>
    <p id="content"></p>
</body>
<script>
    var emojiList = ['🍇','🍈','🍉','🍊','🍋','🍌','🍍','🥭','🍎','🍏','🥨','🥯','🥞','🧇','🧀','🍖','🍗','🥩','🥓', '🍐', '🍑', '🍒', '🍓', '🥝', '🍅', '🥥', '🥑','🍆', '🥔', '🥕', '🌽', '🌶️', '🥒', '🥦', '🧄', '🧅', '🍄', '🥜', '🌰', '🍞', '🥐', '🥖', '🍔', '🍟', '🍕', '🌭', '🥪','🌯','🌮','🥙','🧆','🥚','🍳','🥘','🍲','🥣','🥗','🍿','🧈','🧈','🧂','🥫','🍱','🍘','🍙','🍚','🍛','🍜','🍝','🍠','🍢','🍤']
    var timer = null
    var times = 0
    var list = []
    var contentDom = document.getElementById("content")
    function getEmoji () {
        var _num = Math.floor(Math.random() * (emojiList.length - 1))
        return emojiList[_num]
    }
    function getEmojis (num) {
        var res = ''
        for (var i =0; i < num; i++) {
            res += getEmoji()
        }
        return res
    }
    function start () {
        times = 0
        list = []
        contentDom.innerHTML = ''
        var multiNum = document.getElementById("multipleNum").value
        if (!multiNum) {
            alert(`请输入款中填写值`)
            return
        }
        var num = Math.floor(Math.random() * 90) + 10
        timer = setInterval(() => {
            times += 1
            if (times === 1) {
                list.push({
                    headEmo: getEmoji(),
                    p1: num,
                    p2: multiNum,
                    p3: num * multiNum,
                    footEmo: getEmoji()
                })
            } else {
                var initNum = list[list.length - 1].p3
                list.forEach(i => i.footEmo = '')
                list.push({
                    headEmo: getEmojis(times),
                    p1: initNum,
                    p2: multiNum,
                    p3: initNum * multiNum,
                    footEmo: getEmoji()
                })
            }
            var content = ''
            list.forEach(i => {
                let { headEmo, p1, p2, p3, footEmo } = i
                content += `${headEmo} ${p1} * ${p2} = ${p3} ${footEmo}<br/>`
            })
            contentDom.innerHTML = content
        }, 1500);
    }
    function stop() {
        clearInterval(timer)
    }
</script>
</html>