C:\u\Perl_Eclipse_IDE\OBD2_control>
C:\u\Perl_Eclipse_IDE\OBD2_control>perl Note_02_NonBlockingSTDIN.pl
start
finish
...........Get key K

C:\u\Perl_Eclipse_IDE\OBD2_control>
C:\u\Perl_Eclipse_IDE\OBD2_control>
C:\u\Perl_Eclipse_IDE\OBD2_control>perl Note_02_NonBlockingSTDIN.pl
start
finish
.
.
.
.
.
Get key N