javascript - DIV on DIV 打开按钮点击

Question

对于我正在制作的游戏，我有 3 个不同的困难。我现在拥有的代码只允许我单击“中”和“硬”。这只会更改 DIV 中的元素。我似乎无法使“简单”按钮工作，甚至无法使其他按钮正常工作。现在它并没有用另一个替换整个 DIV，而只是在当前一个中显示另一个的内容。我认为这可能是由“.innerHTML”部分引起的，我不确定如何将其切换为正常工作。

<script>
  function show(param_div_id) {
    document.getElementById('divbox3').innerHTML = document.getElementById(param_div_id).innerHTML;
  }

</script>

<!-- Border for the game --> 
   <form id = "divbox3" name = "quiz" > 
      <div class="game-button" style="width:50%"> 
         <button onclick="show('divbox3')">Easy</button>
         <button onclick="show('divbox3med')">Medium</button>
         <button onclick="show('divbox3hard')">Hard</button>
      </div>
      <br>
      <br>

<!-- Easy Quiz code -->
      <p class = "questions">Most moles have an extra thumb to dig with. <b> True or False? </b></p>
   <input id = "textbox" type = "text" name = "q1">

      <p class = "questions">What is the smallest country in the world? <b> Tuvalu - Vatican City - Monaco </b></p>
   <input id = "textbox" type = "text" name = "q2">

      <p class = "questions">What is the biggest atom on the periodic table? <b> Uranium - Francium - Radium - Lead </b></p>
   <input id = "textbox" type = "text" name = "q3">

      <p class = "questions">Who is the richest man in the world? <b> Bill Gates - Jeff Bezos - Elon Musk </b></p>
   <input id = "textbox" type = "text" name = "q4">

   <input id = "buttoneasy" type = "button" value = "Finished!" onclick = "check();">
</form>

   <div id = "easyscoresheet">
      <p id = "easynumber_correct"></p>
      <p id = "easymessage"></p>
   </div>

   <!-- Border for the game --> 
   <form id = "divbox3med" name = "quizmed" style="display:none;"> 
         <div class="game-button" style="width:50%"> 
         <button onclick="show('divbox3')">Easy</button>
         <button onclick="show('divbox3med')">Medium</button>
         <button onclick="show('divbox3hard')">Hard</button>
      </div>
      <br>
      <br>

<!-- Medium Quiz code -->
  <p class = "questions">What type of animal is Bambi? <b> Elephant -  Tiger - Deer </b> </p>
   <input id = "textbox" type = "text" name = "q1">

      <p class = "questions">Name a US state beginning with K?</p>
   <input id = "textbox" type = "text" name = "q2">

      <p class = "questions">Who wrote the Harry Potter series? <b> Charles D. - JK Rowling - Vincent V. </b> </p>
   <input id = "textbox" type = "text" name = "q3">

      <p class = "questions">Who wrote 'The Scarlet Letter'?</p>
   <input id = "textbox" type = "text" name = "q4">

   <input id = "buttonmed" type = "button" value = "Finished!" onclick = "check();">
</form>

<div id = "medscoresheet">
      <p id = "mednumber_correct"></p>
      <p id = "medmessage"></p>
</div>      

<!-- Border for the game --> 
<form id = "divbox3hard" name = "quizhard" style="display:none;"> 
      <div class="game-button" style="width:50%"> 
         <button onclick="show('divbox3')">Easy</button>
         <button onclick="show('divbox3med')">Medium</button>
         <button onclick="show('divbox3hard')">Hard</button>
      </div>
      <br>
      <br>

<!-- Hard Quiz code -->
      <p class = "questions">What chemical element is diamond made of?</p>
   <input id = "textbox" type = "text" name = "q1">

      <p class = "questions">What game features the terms love, deuce, match and volley?</p>
   <input id = "textbox" type = "text" name = "q2">

      <p class = "questions">Which planet did Superman come from?</p>
   <input id = "textbox" type = "text" name = "q3">

      <p class = "questions">How many syllables make up a haiku?</p>
   <input id = "textbox" type = "text" name = "q4">

   <input id = "buttonhard" type = "button" value = "Finished!" onclick = "check();">
</form>

   <div id = "hardscoresheet">
      <p id = "hardnumber_correct"></p>
      <p id = "hardmessage"></p>
   </div>

https://jsfiddle.net/s7vc6y4L/ 这就是我现在的设置方式

谢谢

Answer 1

我查看了 jsFiddle 并进行了更正。

看这里: https://jsfiddle.net/e7862c3d/

function show(param_div_id) {  
   var quizList = document.getElementsByClassName('quiz');

   for(var i=0; i < quizList.length; i++) {
       quizList[i].style.display = 'none';
   }
   document.getElementById(param_div_id).style.display = 'block';

}

您在表单中重复按钮，我认为最好在实例中显示/隐藏表单。