回答正确的问题如何记分，回答错误的问题如何扣分？

Question

使用 do while 循环，我试图为回答正确的问题记分，并想为回答不正确的问题扣分。我确定有办法做到这一点，我想我只需要一点帮助。

var answer1 = "Batman";
var answer = false;
do {
   var guess = prompt("Who is knows as the Caped Crusader?");
    if (guess == answer1) {
      alert("Yes, you got it right! The Caped Crusader is known as " + answer1 + " You get 1 point!");
      answer = true;
    }
  else {
    alert("Sorry, wrong hero. Try again!");
  }
}
while (answer == false);

Answer 1

您可以添加一个变量保持分数。加1加分，减1减分。

var answer1 = "Batman";
var answer = false;
var score = 0;

do {
  var guess = prompt("Who is knows as the Caped Crusader?");
  if (guess == answer1) {
    alert("Yes, you got it right! The Caped Crusader is known as " + answer1 + " You get 1 point!");
    score++;
    answer = true;
  } else {
    alert("Sorry, wrong hero. Try again!");
    score--;
  }
}
while (answer == false);

alert("Your score is: " + score);