... settextstyle(1,0 ,2) ; settextjustify(0,0); outtextxy (20 ,21 0,"GIAO VIEN HUONG DAN : QUACH THANH HAI"); settextstyle(1,0 ,2) ; settextjustify(0,0); outtextxy (20 ,25 0,"NIEN KHOA : 1995 _ 20 00 ... 0x0E,0x1E,0x04,0x0F,0x04, 0x19,0x04 }; p1 = bang_chu2; p2 = bang_so2; clrscr(); do { ch = getch(); if((int)ch== 32) { outportb((int)&COM -> data,0x04);printf("%c",ch);} ... if(co_bang2==0){outportb((int)&COM->data,0x1B);de_lay(10);co_bang2=1;} printf("%c",ch); ch1 = (int)ch - 33; outportb((int)&COM -> data, p2[ch1]);de_lay (2) ; } ...