我使用这个二维码扫描器:https://github.com/mebjas/html5-qrcode 我用这个代码来扫描二维码: function onScanSuccess(decodedText, decodedResult) {
// handle the scanned code as you like, for example:
document.getElementById('text').value = decodedText;
console.log(`Code matched = ${decodedText}`, decoded