个回答

• qq_卍_23

  2018-08-27 20:04:30

  //解决中文乱码

  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;

  }

  var str = toUtf8("https://www.imooc.com"); 

   $("#qrcode").qrcode(str); 

  可以使用，我用了

  0