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console
<!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>project1</title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
    <div class="emojiOpen active">
        <img src="https://www.pinclipart.com/picdir/middle/536-5360426_monkey-face-emoji-clipart-monkey-emoji-png-download.png" alt="">
    </div>
    <div class="emojiClosed">
        <img src="https://www.emoji.co.uk/files/emoji-one/animals-nature-emoji-one/1468-see-no-evil-monkey.png" alt="">
    </div>
    <script>
        const closedFace=document.querySelector('.emojiClosed');
        const openFace=document.querySelector('.emojiOpen');

        //添加事件监听器
        openFace.addEventListener('click',()=>{
            if(closedFace.classList.contains('emojiClosed')){
                closedFace.classList.add('active');
                openFace.classList.remove('active');
            }
        })

        closedFace.addEventListener('click',()=>{
            if(openFace.classList.contains('emojiOpen')){
                openFace.classList.add('active');
                closedFace.classList.remove('active');
            }
        })
    </script>
</body>
</html>
*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
img{
    height: 512px;
    width: 512px;
    cursor: pointer;
}
.emojiClosed{
    display: none;
}
.emojiOpen{
    display: none;
}
.active{
    display: block;
}