console 命令行工具 X clear

console

let left = document.querySelector('.button-left')
let right = document.querySelector('.button-right')

let min = document.querySelectorAll('.min')
let images = document.querySelectorAll('.images')

let index = 0
let time

function position () {
    images.style.left = (index * (-100)) + "%"
}

function add () {
    if (index >= min.length-1) {
        index = 0
    } else {
        index++
    }
}

function desc () {
    if (index < 1) {
        index = min.length - 1
    } else {
        index--
    }
}

function timer () {
    time = setInterval(() => {
        index++
        desc()
        add()
        position()
    }, 3000)
}

left.addEventListener('click', () => {
    desc()
    position()
    clearInterval(time)
    timer()
})

right.addEventListener('click', () => {
    add()
    position()
    clearInterval(time)
    timer()
})

for (let i=0; i<min.length; i++) {
    min[i].addEventListener('click', ()=>{
        index = i
        position()
        clearInterval(time)
        timer()
    })
}

// timer()

<body>
    <div class="shell">
        <ul class="images">
            <li class="img"></li>
            <li class="img"></li>
            <li class="img"></li>
        </ul>
        <ul class="min-images">
            <li class="min"></li>
            <li class="min"></li>
            <li class="min"></li>
        </ul>
        <div class="button">
            <div class="button-left">
                <
            </div>
            <div class="button-right">
                >
            </div>
        </div>
    </div>
</body>

*{
    margin: 0px;
    bottom: 0px;
    padding: 0px;
    list-style: none;
    text-decoration: none;
}
body {
    display: flex;
    height: 100vh;
    align-items: center;
    justify-content: center;
    background-color: rgb(170, 190, 250)
}

.shell {
    width: 900px;
    height: 500px;
    position: relative;
    /* overflow-x: hidden; */
    border-radius: 5px;
    border: 10px #fff solid;
    box-shadow: 20px 30px 20px rgba(0, 0, 0, .5)
}

.images {
    width: 300%;
    height: 100%;
    display: flex;
    position: absolute;
    left: 0;
    transition: .2s;
}

.img {
    width: 100%;
    background-size: cover
}

.img:nth-child(1) {
    background-color: red
}

.img:nth-child(2) {
    background-color: yellow
}

.img:nth-child(3) {
    background-color: blue
}

.min-images {
    display: flex;
    justify-content: space-evenly;
    position: absolute;
    bottom: 20px;
    width: 40%;
    z-index: 999;
    right: 10%;
}
.min {
    width: 60px;
    height: 60px;
    cursor: pointer;
    border-radius: 50%;
    background-size: cover;
    border: solid 5px rgba(255, 255, 255, .5);
    /* 照片偏移量 */
    background-position: -20px 0;
}

.min:nth-child(1){
    background-color: purple;
}
.min:nth-child(2){
    background-color: orange;
}
.min:nth-child(3){
    background-color: skyblue;
}

.button{
    width: 100%;
    height: 100%;
    position: absolute;
    display: flex;
    justify-content: space-between;
    user-select: none;
}
.button-left,
.button-right{
    font-size: 50px;
    background-color: rgba(160,190,255,.7);
    padding: 0 20px;
    line-height: 500px;
    cursor: pointer;
}