尝试在javaScript中增加西蒙游戏关卡

var levels = [
  {
    question: "What is the capital of France?",
    options: ["Paris", "London", "Berlin", "Rome"],
    answer: 0
  },
  {
    question: "Which is the largest planet in our solar system?",
    options: ["Jupiter", "Saturn", "Mars", "Earth"],
    answer: 0
  },
  // 添加更多关卡...
];

<div id="question"></div>
<div id="options"></div>
<button id="submit">Submit</button>

var currentLevel = 0;

function showLevel(levelIndex) {
  var level = levels[levelIndex];
  document.getElementById("question").textContent = level.question;

  var optionsDiv = document.getElementById("options");
  optionsDiv.innerHTML = ""; // 清空选项

  level.options.forEach(function(option, index) {
    var button = document.createElement("button");
    button.textContent = option;
    button.addEventListener("click", function() {
      checkAnswer(index);
    });
    optionsDiv.appendChild(button);
  });
}

function checkAnswer(selectedIndex) {
  var level = levels[currentLevel];
  if (selectedIndex === level.answer) {
    alert("Correct answer!");
    currentLevel++;
    if (currentLevel < levels.length) {
      showLevel(currentLevel);
    } else {
      alert("Game over!");
    }
  } else {
    alert("Wrong answer! Try again.");
  }
}

showLevel(currentLevel); // 显示第一个关卡