解决JavaScript错误'ReferenceError: callCHATGPT is not defined'

<div class='field centered'>
  <button id='answer' onclick='callCHATGPT()' class='ui primary button'>点击回答</button>
  <button onclick='location.reload()' class='ui button'>清空内容</button>
  <button onclick='copyCode()' class='ui button'>复制结果</button>
  <button id='saveBtn' class='ui button'>保存Key</button>
  <button onclick='save()' autocomplete='off' class='ui button'>保存内容</button>
  <button id='btn_grants' onclick='viewGrants()' autocomplete='off' class='ui button'>查看费用</button>
  <button class='ui button' onclick='document.getElementById('result').innerHTML='请添加微信****'; document.getElementById('result').style.color='red''>开通会员</button>
</div>
<script>
  function callCHATGPT() {
    // your code here
  }
</script>
<p>需要定义<code>callCHATGPT</code>函数来解决该错误。完整代码如下：</p>
<div class='field centered'>
  <button id='answer' onclick='callCHATGPT()' class='ui primary button'>点击回答</button>
  <button onclick='location.reload()' class='ui button'>清空内容</button>
  <button onclick='copyCode()' class='ui button'>复制结果</button>
  <button id='saveBtn' class='ui button'>保存Key</button>
  <button onclick='save()' autocomplete='off' class='ui button'>保存内容</button>
  <button id='btn_grants' onclick='viewGrants()' autocomplete='off' class='ui button'>查看费用</button>
  <button class='ui button' onclick='document.getElementById('result').innerHTML='请添加微信****'; document.getElementById('result').style.color='red''>开通会员</button>
</div>
<script>
  function callCHATGPT() {
    // your code here
  }
</script>