需要引入两个js文件：
1)jquery.min.js
2)jquery.qrcode.min.js
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>生成名片二维码</title></head><script type="text/javascript" src="js/jquery.min.js"></script><script type="text/javascript" src="js/jquery.qrcode.min.js"></script><style type="text/css" >body {position: absolute; top: 0%;left: 0%; width:100%; height:100%; background-color: #a7aaad; -moz-opacity: 0.7; opacity:0.5;z-index:1001; filter: alpha(opacity=40);}.back{background-image: url("image/img1.jpg");z-index:100;}</style><script type="text/javascript">$(function(){//此处生成名片二维码var the_text = utf16to8("/question/40117062");//alert(the_text);$('#qrcodeid').qrcode({width:140,height:140,render:"canvas", //设置渲染方式 table canvastypeNumber : -1, //计算模式 correctLevel : 0,//纠错等级 background : "#ffffff",//背景颜色 foreground : "#000000",//前景颜色 text:the_text}); });function utf16to8(str) {//解决中文乱码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; } </script><body ><div class="back"></div><div id = "qrcodeid"></div> <!-- 生成的二维码放在此div中 --></body></html>
