`newbytearray'
--------------

newbytearray(LEN,[LISTORSTRING])
     :: $BD9$5(B LEN $B$N(B byte array $B$r@8@.$9$k(B.

RETURN
     byte array

LEN
     $B<+A3?t(B

LISTORSTRING
     $B%j%9%H$^$?$OJ8;zNs(B

   * `newvect' $B$HF1MM$K$7$F(B byte array $B$r@8@.$9$k(B.  similar to that of
     `newvect'.

   * $BJ8;zNs$G=i4|CM$r;XDj$9$k$3$H$b2DG=$G$"$k(B.

   * byte array $B$NMWAG$N%"%/%;%9$OG[Ns$HF1MM$G$"$k(B.

     [182] A=newbytearray(3);
     |00 00 00|
     [183] A=newbytearray(3,[1,2,3]);
     |01 02 03|
     [184] A=newbytearray(3,"abc");
     |61 62 63|
     [185] A[0];
     97
     [186] A[1]=123;
     123
     [187] A;
     |61 7b 63|

$B;2>H(B
     *Note `newvect': newvect.

