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pc端做微信支付后端给的二维码是byte数组格式需转换成base64图片显示
<div id="img"></div>
<script type="text/javascript">
var url = "data:image/png;base64,";
var i = "iVBORw0KGgoAAAAN"; //接口二维码
setInterval(showQrcode,300)
function showQrcode(){
//获取图片直接-拼接base64
document.getElementById("img").src = url+ i;
}
</script>
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