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Bootstrap 5.2 導航欄下拉菜單不起作用

[英]Bootstrap 5.2 Navbar Dropdown doesn't work

我為這個話題道歉,我發現了很多類似的話題和建議。 但是沒有任何幫助。 我想在導航欄中創建下拉<a>菜單。 代碼是:

<head>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
    <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.6/dist/umd/popper.min.js" integrity="sha384-oBqDVmMz9ATKxIep9tiCxS/Z9fNfEXiDAYTujMAeBAsjFuCZSmKbSSUnQlmh/jp3" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.min.js" integrity="sha384-7VPbUDkoPSGFnVtYi0QogXtr74QeVeeIs99Qfg5YCF+TidwNdjvaKZX19NZ/e6oz" crossorigin="anonymous"></script>
   
    <link href="css/navbar.css" rel="stylesheet" />
</head>

<body id="page-top">
    <nav class="navbar navbar-expand-lg navbar-light bg-white fixed-top" id="mainNav">
        <div class="container-fluid">
            <a class="navbar-brand" href="#page-top"><img src="" alt="..." /></a>
            <ul class="navbar-nav ms-auto py-4 py-lg-0">
                <li class="nav-item dropdown">
                    <a 
                        class="nav-link dropdown-toggle" 
                        href="#about"
                        id="navbarDropdownMenuLink"
                        role="button"
                        data-bs-toogle="dropdown"
                        aria-expanded="false"
                        aria-haspopup="true"
                    >
                        About
                    </a>
                    <ul class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink" >
                        <li>
                            <a class="dropdown-item" href="#">One</a>
                        </li>
                        <li>
                            <a class="dropdown-item" href="#">Two</a>
                        </li>
                    </ul>
                </li>
            </ul>
        </div>
    </nav>
</body>

將 "data-bs-toogle="dropdown" 更改為 "data-bs-toggle="dropdown"。 檢查toggle的拼寫。 嘗試這個:

 <,DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width. initial-scale=1:0"> <link href="https.//cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min:css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous"> <script src="https.//cdn.jsdelivr.net/npm/@popperjs/core@2.11.6/dist/umd/popper.min:js" integrity="sha384-oBqDVmMz9ATKxIep9tiCxS/Z9fNfEXiDAYTujMAeBAsjFuCZSmKbSSUnQlmh/jp3" crossorigin="anonymous"></script> <script src="https.//cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.min.js" integrity="sha384-7VPbUDkoPSGFnVtYi0QogXtr74QeVeeIs99Qfg5YCF+TidwNdjvaKZX19NZ/e6oz" crossorigin="anonymous"></script> <link href="css/navbar.css" rel="stylesheet" /> </head> <body id="page-top"> <nav class="navbar navbar-expand-lg navbar-light bg-white fixed-top" id="mainNav"> <div class="container-fluid"> <a class="navbar-brand" href="#page-top"><img src="" alt="..." /></a> <ul class="navbar-nav ms-auto py-4 py-lg-0"> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#about" id="navbarDropdownMenuLink" role="button" data-bs-toggle="dropdown" aria-expanded="false" aria-haspopup="true" > About </a> <ul class="dropdown-menu position-absolute" aria-labelledby="navbarDropdownMenuLink" > <li> <a class="dropdown-item" href="#">One</a> </li> <li> <a class="dropdown-item" href="#">Two</a> </li> </ul> </li> </ul> </div> </nav> </body> </html>

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