<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body>
<input id="input"/>
<script>
const input= document.getElementById('input');
input.addEventListener('keydown',e=>{
if(e.keyCode==13){
let qrcodeData=input.value;
console.log("扫码数据：${qrcodeData}")
}
})
input.focus()
</script>
</body>
</html>
