<script src="~/Content/js/jquery-2.1.4.min.js"></script>
<script src="~/Content/js/jquery.qrcode.min.js"></script>

<div id="qrCodeDiv">
</div>

$("#qrCodeDiv").qrcode({
render: "canvas", // 渲染方式有table方式（IE兼容）和canvas方式
width: 260, //宽度
height: 260, //高度
text: "www.baidu.com", //内容
typeNumber: -1,//计算模式
correctLevel: 2,//二维码纠错级别
background: "#ffffff",//背景颜色
foreground: "#000000" //二维码颜色
});

function utf16to8(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;
};

$("#qrCodeDiv").qrcode({
render: "canvas", // 渲染方式有table方式（IE兼容）和canvas方式
width: 260, //宽度
height: 260, //高度
text: utf16to8("汉字内容的二维码"), //内容
typeNumber: -1,//计算模式
correctLevel: 2,//二维码纠错级别
background: "#ffffff",//背景颜色
foreground: "#000000" //二维码颜色
});

<img id="qrCodeIco" src="~/images/logo.png" style="position: absolute;width: 30px; height: 30px;" />

var margin = ($("#qrCodeDiv").height() - $("#qrCodeIco").height()) / 2; //控制Logo图标的位置
$("#qrCodeIco").css("margin", margin);