Method subBytes

src/main/java/utils/Util.java:84–88

(byte[] src, int begin, int count)

    }

    public static byte[] subBytes(byte[] src, int begin, int count) {
        byte[] bs = new byte[count];
        for (int i=begin; i<begin+count; i++) bs[i-begin] = src[i];
        return bs;
    }

    public static String matchByStartEndPosition(String str,String rule){
        int nStart = 0;