coding help?

does code arduino? can't figure out problems code , on code see if intend to.
 
what it's supposed do: generate number , use 8 leds on breadboard signify if guess high, low or spot on, , respond accordingly.
 
what's wrong code: "serial  doesn't have type", also, idk how leds going react. gonna blink @ once 100ms delay, or gonna blink once @ time in order?
if can me, that'd great.
 
 serial.begin(9600) {
  pinmode(2, output), pinmode(3, output), pinmode(4, output) , pinmode(5, output) , pinmode(6, output) , pinmode(7, output) , pinmode(8, output) , pinmode(9, output);
}



void loop() {
  serial.println("guess number between 0-255");
  number = serial.readline;
           randnumber = random(255);
  while (serial.available() == 0);
  number = serial.parseint();

  while (number < 255({
  //if (money)<255// computer generate random number
  serial.println("guess number")
  };
  while (serial.available() == 0);
  answer = serial.read();

  if (guess > num) {
    (
      answer == 'n');
      printin("guess low, try again.");
      digitalwrite(2, 3, 4, 5, 6, 7, 8, 9)low);
      delay(100);
    }

  if (guess < num) {
  answer == 'n')
  printin("guess high, try again.");
  digitalwrite(9, 8, 7, 6, 5, 4, 3, 2, 1) high);
  delay(100);

}
else {
  yes
  number = number = number
                    println ("you won! *cue john cena theme song*");
    digitalwrite(2, 3, 4, 5, 6, 7, 8, 9 high);

  }
}

you pulling our leg.

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