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<script src="//a.alipayobjects.com/arale-qrcode/3.0.5/index.js"></script>
<body>
    <div id="qrPlace" />
</body>
<script>
        let el = document.getElementById("qrPlace");
        el.appendChild(
            new AraleQRCode({
                render: "canvas",
                size: 150,
                correctLevel: 1,
                text: "后台没给code"
            })
        );
        // "copy-to-clipboard": "^3.0.8",前端复制插件
</script>