基于jsp的井字游戏实例

 if(canAttack()) {
  console.log("attack");
  var attackPos = findAttackPos();
  updatePanel(attackPos, computerVal);
} else if(needDefend()) {
  console.log("defend");
  var defendPos = findDefendPos();
  updatePanel(defendPos, computerVal);
} else if(firstStep()) {
  console.log("first");
    updatePanel(firstPos, computerVal);
    running = true;
} else {
  console.log("other");
  if(panel[1][1] == 0) {
        updatePanel(firstPos, computerVal);
      return;
  }
  if(special()) {
    console.log('special');
    var pos = findSpecialPos();
    updatePanel(pos, computerVal);
    return;
  }
  var random = Math.floor(Math.random() * 2);
  if(panel[0][0] == 0 && panel[2][2] == 0) {
    var pos = (random == 0) ? 0 : 8;
    updatePanel(pos, computerVal);
  } else if(panel[0][2] == 0 && panel[2][0] == 0) {
    var pos = (random == 0) ? 2: 6;
    updatePanel(pos, computerVal);
  } else {
    var otherPos = findEmptyPos();
    updatePanel(otherPos, computerVal);
  }
}