JavaScript dynamically generates QR code pictures

1.html code

 <div id="qrcode"></div>

2. Introduce external js files

 <script src="QRCode.js"></script>

3. Method call

 var qrcode = new QRCode(document.getElementById("qrcode"), {width : 200,height : 200}); var token='params';var QRCodeUrl='http://www.baidu.com'+'/Share/ScanQRCode?token='+token;qrcode.makeCode(QRCodeUrl);

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