条形码(代码128)字体不能扫描有问题

[start char][barcode][checksum][stop char]

/*
 * This is the variable part of my barcode, I append this to a 
 * static prefix later, but I need to perform logic to compute the 
 * checksum for this variable. There is logic earlier that enforces 
 * this variable as a 9 character string containing only digits.   
 */ 
var formIncrement = // a 9 char "digit" string variable

/*
 * Dynamically compute the total checksum value (before modulus) 
 * for the variable part of my barcode, I will need to get a modulus 
 * from this total when I am done. If you need a variable number of 
 * characters in your barcodes or if they are not all digits 
 * obviously something different would have to be done here.  
 */ 
var incrementCS = ((parseInt(formIncrement.charAt(0)) + 16) * 7) +
                  ((parseInt(formIncrement.charAt(1)) + 16) * 8) +
                  ((parseInt(formIncrement.charAt(2)) + 16) * 9) +
                  ((parseInt(formIncrement.charAt(3)) + 16) * 10) +
                  ((parseInt(formIncrement.charAt(4)) + 16) * 11) +
                  ((parseInt(formIncrement.charAt(5)) + 16) * 12) +
                  ((parseInt(formIncrement.charAt(6)) + 16) * 13) +
                  ((parseInt(formIncrement.charAt(7)) + 16) * 14) + 
                  ((parseInt(formIncrement.charAt(8)) + 16) * 15);

/*
 * 452 is the total checksum for my barcodes static prefix (600001), 
 * so it doesn't need to be computed dynamically, I just add it to 
 * the variable checksum total determined above and then get the 
 * modulus of that sum:  
 */ 
var checksum = (452 + incrementCS) % 103


var barcode = "š600001" + formIncrement

/*
 * The 0 and the 95 - 102 cases had to be defined explicitly because 
 * their checksum figures do not line up with the javascript char 
 * codes for some reason (see the code 128 definition table in the 
 * linked page) otherwise we simply need to get the charCode of the 
 * checksum + 32. I also tack on the stop char here. 
 */ 
switch (checksum) {
    case 0 :
    barcode += "€œ";
    break;
    case 95 :
    barcode += "‘œ";
    break;
    case 96 :
    barcode += "’œ";
    break;
    case 97 :
    barcode += ""œ";
    break;
    case 98 :
    barcode += ""œ";
    break;
    case 99 :
    barcode += "•œ";
    break;
    case 100 :
    barcode += "–œ";
    break;
    case 101 :
    barcode += "—œ";
    break;
    case 102 :
    barcode += "˜œ";
    break;
    default :
    barcode += String.fromCharCode(checksum + 32) + "œ";
}

return barcode;