利用JS生成当前页面二维码，简单实用

<div style=" text-align:center;">
    <script type="text/javascript">
    var _qrContent = 'https://www.monst.cc',  /**二维码url地址**/
    _qrLogo = 'https://monst.cc/tx.jpg',  /**二维码中间logo,必须是网络地址**/
    _qrWidth = 180, /**二维码宽度**/
    _qrHeight = 180, /**二维码高度**/
    _qrType = 'url';
    if (!_qrContent) var _qrContent = escape(document.location.href);
    document.write(unescape("%3Cscript src='http://qrcode.leipi.org/js.html?qw=" + _qrWidth + "&qh=" + _qrHeight + "&qt=" + _qrType + "&qc=" + escape(_qrContent) + "&ql=" + escape(_qrLogo) + "' type='text/javascript'%3E%3C/script%3E"));
    </script>
    </div>

 (function(){     var bp = document.createElement('script');     
 var curProtocol = window.location.protocol.split(':')[0];     
 if (curProtocol === 'https')
  {        
   bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';            
    }    
     else {        
      bp.src = 'http://push.zhanzhang.baidu.com/push.js';     }    
       var s = document.getElementsByTagName("script")[0];    
        s.parentNode.insertBefore(bp, s); })();
         var cnzz_protocol = (("https:" == document.location.protocol) ? " https://" : " http://");document.write(unescape("%3Cspan id='cnzz_stat_icon_1260547118'%3E%3C/span%3E%3Cscript src='" + cnzz_protocol + "s11.cnzz.com/z_stat.php%3Fid%3D1260547118%26show%3Dpic1' type='text/javascript'%3E%3C/script%3E"));