const btn = document.querySelector('.btn');
        const card = document.querySelector('.card');
        // 获取到龙图元素
        const long = document.getElementById('logo');
        // 获取到祝福文本元素
        const greetings = document.querySelector('.greetings');
        // 获取新年文案的方法
        const getGreet = async () => {
            const res = await fetch('./assets/data.json');
            const data = await res.json();
            //   随机取出data的某一项
            const randomIndex = Math.floor(Math.random() * data.length);
            const randomtext = data[randomIndex].text;
            return randomtext
        }
        
        
        // 插入新年文案
        const insertText = async () => {
            greetings.innerHTML = await getGreet();
        }
        
        // 点击龙切换祝福语
        long.addEventListener('click', function () {
            // 随机文本插入
            insertText()
            // 发出音效
            var audio = new Audio();
            audio.src = './assets/long.mp3';
            audio.autoplay = true;
        })

<div class="title" contenteditable="true">亲爱的掘友们</div>
  <br>
<div class="greetings" contenteditable="true">春节到了, 
    愿您携一份开朗的心情,过好每一天, 做一个积极乐观的人,
    展望一个金灿灿的未来. 身体健康, 万事如意, 心想事成,早日暴富
 </div>

const targetElement = document.getElementById('target');
html2canvas(targetElement).then(function(canvas) {
  document.body.appendChild(canvas); // 在页面中插入生成的 canvas 元素
});

const blob = new Blob(['Hello, World!'], { type: 'text/plain;charset=utf-8' });
saveAs(blob, 'hello.txt');

function captureAndSave() {
            const targetElement = document.getElementById('target');
            html2canvas(targetElement).then(function (canvas) {
                canvas.toBlob(function (blob) {
                    // 使用 FileSaver.js 保存 Blob 对象到本地文件
                    saveAs(blob, 'screenshot.png');
                });
            });
        }