基于JavaScript实现生成名片、链接等二维码

<div id = "qrcodeid"></div> //生成的二维码放在此 div 中
<script type="text/javascript" src="js/jquery.qrcode.min.js"></script>//引入qrcode.js（到https://github.com/jeromeetienne/jquery-qrcode 下载 ）
<script>
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>
<script>//此处生成名片二维码（如要生成普通连接二维码 则 “text”参数值 直接调换成普通连接便可）
var the_text = "BEGIN:VCARD \r\nFN:姓名 \r\nTEL;CELL,VOICE:15000000000 \r\nTITLE:职称 \r\nORG:公司（组织） \r\nEMAIL;INTERNET,HOME:[email protected] \r\nADR;WORK,POSTAL:地球我国山东... \r\nURL:https://leerd.cn \r\nEND:VCARD";
the_text = utf16to8(the_text);
//alert(the_text);
jQuery("#qrcodeid").qrcode({
width:140,
height:140,
render:"canvas", //设置渲染方法 table canvas
typeNumber : -1,  //盘算模式 
correctLevel  : 0,//纠错等级 
background   : "#ffffff",//背景色彩 
foreground   : "#000000",//远景色彩 
text:the_text
}); 
</script>
<div