19 lcd
......\例程19-1
......\........\c8051F040.h
......\........\lcd_test1.c
......\例程19-2
......\........\c8051F040.h
......\........\mylcd.h
......\........\PUTCHAR.C
......\........\withlib.c
......\例程19-3
......\........\c8051F040.h
......\........\lcd.h
......\........\lcd_menu.c
......\........\PUTCHAR.C