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JS生成当前页面URL二维码

javascript 飞翔的mouse 33浏览

本代码实测过 能用 很好用

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
<title>js_canvas_download</title> 
<script type='text/javascript' src='http://cdn.staticfile.org/jquery/2.1.1/jquery.min.js'></script> 
<script type="text/javascript" src="http://cdn.staticfile.org/jquery.qrcode/1.0/jquery.qrcode.min.js"></script> 

</head> 
<body> 
<div id="qrcode"></div> 
<a id="download" download="qrcode.jpg"></a> 
<button id="save">save</button> 
</body> 
</html> 
<script>
    jQuery('#qrcode').qrcode({ width: 75, height: 75, text: window.location.href });
    $("#save").click(function () {
        var canvas = $('#qrcode').find("canvas").get(0);
        var url = canvas.toDataURL('image/jpeg');
        $("#download").attr('href', url).get(0).click();
        return false;
    });
</script>

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