css Bootstrap5模态必须切换div的可见性

为了实现以下两点，需要在下面的Bootstrap 5示例中进行哪些特定更改：

1.“afterAcceptingTerms”div应隐藏，直到用户单击“接受条款”模态按钮为止，以便只有“beforeAcceptingTerms”div可见，直到用户单击“接受条款”模态按钮为止。**
1.一旦用户单击AcceptTerms模态按钮，“afterAcceptingTerms”就应该变为可见，并且一旦用户单击AcceptTerms模态按钮，“beforeAcceptingTerms”div就应该隐藏。
下面是我们当前开始使用的Bootstrap 5代码，但是您可以看到下面的代码示例未能按照上面的要求切换div类。

<!doctype html>
<html lang="en-US">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <title>Modal Popup Page</title>
    <link href="/assets/css/bootstrap.min.css" rel="stylesheet"> 
    <script src="/assets/js/popper.min.js"></script>
    <script src="/assets/js/bootstrap.min.js" ></script>
  </head>
  <body>
    <div class="wrapper" id="beforeAcceptingTerms">
      <section class="content-section">
        <p>You must click on the "I agree to the terms button" in order to see the content on this page.</p>
      </section>
  </div>
  <div class="wrapper" id="afterAcceptingTerms">
    <section class="content-section">
      <p>The page content goes here.  But this is only visible because you clicked on the Accept button on the modal in order to get the modal to go away.</p>
    </section>
  </div>
<!-- Modal -->
    <div class="modal fade" id="myModal" tabindex="-1" aria-labelledby="exampleModalLabel"   data-bs-backdrop="static" aria-hidden="true">
      <div class="modal-dialog" style="position: fixed;bottom: 0;left: 0;right: 0;">
          <div class="modal-content">
        <div class="modal-body">
            By using this site, you certify that you agree to our <a href="/terms">Terms of Use</a>.
        </div>
        <div class="modal-footer">
              <button type="button" class="btn btn-secondary" data-bs-dismiss="modal" onclick="localStorage.setItem('acceptTerms',1)">I agree to the Terms.</button>
        </div>
      </div>
      </div>
    </div>
    <script>
      let acceptTerms = localStorage.getItem('acceptTerms');
      if(acceptTerms != 1){
        var myModal = new bootstrap.Modal(document.getElementById('myModal'), {})
        myModal.show()
      }
    </script>
  </body>
</html>

您忘记添加cdn，而不是本地文件^^*
（我添加了一个按钮，用于清除本地存储数据以进行测试）*
我改变了什么

// Window onload event to display your content if users has accepted terms
        // calling checkTerms() function
        window.onload = (event) => {
            checkTerms();
        };

        const afterAcceptingTerms = document.getElementById('afterAcceptingTerms');
        const acceptTermsButton = document.getElementById('acceptTermsButton');

        // Added a listener to your accept terms button
        // removing inline onclick element attribute
        acceptTermsButton.addEventListener('click', function() {
            termsAccepted();
        });
        // Here we manages what to do when user click in the accept terms button
        // in this case with try/catch to prevent critical errors its good to send
        // errors like that (in a catch block) to an server for you stay on what errors users can experience
        function termsAccepted() {
            try {
                localStorage.setItem('acceptTerms',1);
            } catch (error) {
                alert('CRITICAL ERROR !!!! USER WILL NOT SEE THE CONTENT');
            }
            afterAcceptingTerms.classList.remove('none');
        }
        // Function called when window load !! To check if user has accept the terms !
        // Im using try/catch because this is critical , if the localStorage cant be acessed
        // your content dont will be showned
        function checkTerms() {
            let val = '';
            try {
                val = localStorage.getItem('acceptTerms');
            } catch (error) {
                alert('CRITICAL ERROR !!!! USER WILL NOT SEE THE CONTENT');
            }
            if (val === '1') {
            afterAcceptingTerms.classList.remove('none');
            } else {
                var myModal = new bootstrap.Modal(document.getElementById('myModal'), {})
                myModal.show()
            }
        }

还添加了一个.none类w/（display：none）到您的#afterAcceptingTerms元素中，在此目的下，此元素以display：none开头是必不可少的。我们将以编程方式删除该类：

<!doctype html>
<html lang="en-US">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <title>Modal Popup Page</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>
    <style>
        .none {
            display: none;
        }
    </style>
  </head>
  <body>
    <div class="wrapper" id="beforeAcceptingTerms">
      <section class="content-section">
        <p>You must click on the "I agree to the terms button" in order to see the content on this page.</p>
      </section>
      <button id="clearData">Clear storage data</button>
  </div>
  <div class="wrapper none" id="afterAcceptingTerms">
    <section class="content-section">
      <p>The page content goes here.  But this is only visible because you clicked on the Accept button on the modal in order to get the modal to go away.</p>
    </section>
  </div>
<!-- Modal -->
    <div class="modal fade" id="myModal" tabindex="-1" aria-labelledby="exampleModalLabel"   data-bs-backdrop="static" aria-hidden="true">
      <div class="modal-dialog" style="position: fixed;bottom: 0;left: 0;right: 0;">
          <div class="modal-content">
        <div class="modal-body">
            By using this site, you certify that you agree to our <a href="/terms">Terms of Use</a>.
        </div>
        <div class="modal-footer">
              <button type="button" id="acceptTermsButton" class="btn btn-secondary" data-bs-dismiss="modal">I agree to the Terms.</button>
        </div>
      </div>
      </div>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
    <script>
        var clearData = document.getElementById('clearData');
        clearData.addEventListener('click', function() {
            localStorage.clear();
        });

        window.onload = (event) => {
            checkTerms();
        };

        const afterAcceptingTerms = document.getElementById('afterAcceptingTerms');
        const acceptTermsButton = document.getElementById('acceptTermsButton');

        acceptTermsButton.addEventListener('click', function() {
            termsAccepted();
        });

        function termsAccepted() {
            try {
                localStorage.setItem('acceptTerms',1);
                afterAcceptingTerms.classList.remove('none');
            } catch (error) {
                alert('CRITICAL ERROR !!!! USER WILL NOT SEE THE CONTENT');
            }
        }

        function checkTerms() {
            let val = '';
            try {
                val = localStorage.getItem('acceptTerms');
                if (val === '1') {
                afterAcceptingTerms.classList.remove('none');
                } else {
                    var myModal = new bootstrap.Modal(document.getElementById('myModal'), {})
                    myModal.show()
                }
            } catch (error) {
                alert('CRITICAL ERROR !!!! USER WILL NOT SEE THE CONTENT');
            }
        }
    </script>
  </body>
</html>

css Bootstrap5模态必须切换div的可见性

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