jquery生成qrcode二维码

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<script src="__JS__/jquery-1.11.1.min.js"></script>
<script src="__JS__/jquery.qrcode-0.11.0.min.js"></script>
<script>
function toUtf8(str) {    
    var out, i, len, c;    
    out = "";    
    len = str.length;    
    for(i = 0; i < len; i++) {    
        c = str.charCodeAt(i);    
        if ((c >= 0x0001) && (c <= 0x007F)) {    
            out += str.charAt(i);    
        } else if (c > 0x07FF) {    
            out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));    
            out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));    
            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));    
        } else {    
            out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));    
            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));    
        }    
    }    
    return out;    
} 

$(function(){
	$("#qrCode").qrcode({
		render: "table",
		 200,
		height:200,
		text: toUtf8("http://www.163.com")
	});
});
</script>
</head>

<body>

<div id="qrCode"></div>

</body>
</html>
原文地址:https://www.cnblogs.com/doseoer/p/4463073.html