我正在創建一個帶有一個輸入和一個按鈕的“算命先生”功能。用戶寫下一個問題，然后可以單擊該功能的按鈕來完成。然而，當用戶點擊回車時什么也沒有發生。我嘗試了在這里找到的一些解決方案，但沒有任何效果。我沒有做很多 JavaScript。謝謝！var outcomes = [  "It is certain",  "It is decidedly so",  "Without a doubt",  "Yes - definitely",  "You may rely on it",  "As I see it, yes",  "Most likely",  "Outlook good",  "Ask again later",  "Better not tell you now",  "Cannot predict now",  "Concentrate and ask again",  "Don’t count on it",  "No",  "My reply is no",  "My sources say yes",  "Outlook is not so good",  "Yes",  "Yes, it would benefit you",  "Reply hazy, try again",  "Very doubtful",  "Signs point to yes",  "No, it wouldn't benefit you"];function ask() {  var x = document.getElementById("input-box").value;  var sel = Math.floor(Math.random() * outcomes.length);  var b8 = outcomes[sel];  if (x.indexOf('?') + 1) {    document.getElementById("answer").innerHTML = b8;  } else {    document.getElementById("answer").innerHTML = "Try with a question mark (?)";  }}<div class="ask">  <input id="input-box">  <div class="button" onclick="ask()">    <img src="img/ask-1.png" onmouseover="this.src='img/ask-2.png';" onmouseout="this.src='img/ask-1.png';">  </div>  <p id="answer"></p></div>