為什么我的 Bootstrap 4 Carousel 沒有出現？
[英]Why my Bootstrap 4 Carousel doesn't show up?
問題描述
我相信我正確地從 Boostrap 4 (v4.5) 復制並粘貼了 carousel 的代碼，我還在 . 雖然 Bootstrap 4 導航欄運行良好，但我不明白為什么輪播沒有出現。 還有什么我需要包括的東西才能讓輪播工作嗎？
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- bootstrap cdn --> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous"> <!-- fontawesome cdn --> <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.14.0/css/all.css" integrity="sha384-HzLeBuhoNPvSl5KYnjx0BT+WB0QEEqLprO+NBkkk5gbc67FTaL7XIGa2w1L0Xbgc" crossorigin="anonymous"> <!-- custom css --> <link rel="stylesheet" href="indexStyle.css"> <title>BLANK</title> </head> <body> <!-- Design the navbar --> <nav id="mainNavbar" class="navbar navbar-expand-md navbar-dark bg-dark py-0 fixed-top"> <a href="main.html" class="navbar-brand"><i class="fas fa-pencil-ruler mr-2"></i>BLANK</a> <!-- hamburger menu when shrinked --> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navLinks"> <span class="navbar-toggler-icon"></span> </button> <div class="colapse navbar-collapse" id="navLinks"> <ul class="navbar-nav"> <li class="nav-item dropdown"> <a href="#" class="nav-link dropdown-toggle mr-2" id="navbarDropdownMenuLink" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> ABOUT </a> <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"> <a href="about.html" class="dropdown-item">ABOUT US</a> <a href="#" class="dropdown-item">OUR TEAM</a> <a href="#" class="dropdown-item">OUR MISSION</a> <a href="#" class="dropdown-item">CONTACT US</a> </div> </li> <li class="nav-item"> <a href="#" class="nav-link mr-2">PARENTS/GUARDIANS</a> </li> <li class="nav-item"> <a href="#" class="nav-link mr-2">STUDENTS</a> </li> </ul> </div> </nav> <section> <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel"> <ul class="carousel-indicators"> <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li> <li data-target="#carouselExampleIndicators" data-slide-to="1"></li> <li data-target="#carouselExampleIndicators" data-slide-to="2"></li> </ul> <div class="carousel-inner"> <div class="carousel-item active"> <img src="slide1.jpg" class="d-block w-100" alt="..."> </div> <div class="carousel-item"> <img src="slide2.jpg" class="d-block w-100" alt="..."> </div> <div class="carousel-item"> <img src="slide3.jpg" class="d-block w-100" alt="..."> </div> </div> <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev"> <span class="carousel-control-prev-icon" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next"> <span class="carousel-control-next-icon" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div> </section> <!-- Mid Section --> <div class="container text-center"> <h3 class="display-5" id="big-title">A New Way of Learning</h3> <p>Join us for free exclusive free classes</p> </div> <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script> <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 src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> </body> </html>
2 個解決方案
解決方案1
0 2020-08-31 22:08:41
您是否嘗試將腳本放在頁面的開頭？ 我已經對我的圖像嘗試了相同的代碼，並且它們起作用了
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- bootstrap cdn -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<!-- fontawesome cdn -->
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.14.0/css/all.css"
integrity="sha384-HzLeBuhoNPvSl5KYnjx0BT+WB0QEEqLprO+NBkkk5gbc67FTaL7XIGa2w1L0Xbgc" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<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 src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
<!-- custom css -->
<link rel="stylesheet" href="indexStyle.css">
<title>BLANK</title>
</head>
<body>
<!-- Design the navbar -->
<nav id="mainNavbar" class="navbar navbar-expand-md navbar-dark bg-dark py-0 fixed-top">
<a href="main.html" class="navbar-brand"><i class="fas fa-pencil-ruler mr-2"></i>BLANK</a>
<!-- hamburger menu when shrinked -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navLinks">
<span class="navbar-toggler-icon"></span>
</button>
<div class="colapse navbar-collapse" id="navLinks">
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a href="#" class="nav-link dropdown-toggle mr-2" id="navbarDropdownMenuLink" role="button"
data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
ABOUT
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a href="about.html" class="dropdown-item">ABOUT US</a>
<a href="#" class="dropdown-item">OUR TEAM</a>
<a href="#" class="dropdown-item">OUR MISSION</a>
<a href="#" class="dropdown-item">CONTACT US</a>
</div>
</li>
<li class="nav-item">
<a href="#" class="nav-link mr-2">PARENTS/GUARDIANS</a>
</li>
<li class="nav-item">
<a href="#" class="nav-link mr-2">STUDENTS</a>
</li>
</ul>
</div>
</nav>
<section>
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
<ul class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
</ul>
<div class="carousel-inner">
<div class="carousel-item active">
<img src="slide1.jpg" class="d-block w-100" alt="...">
</div>
<div class="carousel-item">
<img src="slide2.jpg" class="d-block w-100" alt="...">
</div>
<div class="carousel-item">
<img src="slide3.jpg" class="d-block w-100" alt="...">
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</section>
<!-- Mid Section -->
<div class="container text-center">
<h3 class="display-5" id="big-title">A New Way of Learning</h3>
<p>Join us for free exclusive free classes</p>
</div>
</body>
</html>
解決方案2
0 已采納 2020-08-31 23:36:45
您的代碼正在運行。 它在下面工作。 如果您的圖像 src 無效，則 Bootstrap 4 Carrousel 將不會顯示。
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- bootstrap cdn --> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous"> <!-- fontawesome cdn --> <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.14.0/css/all.css" integrity="sha384-HzLeBuhoNPvSl5KYnjx0BT+WB0QEEqLprO+NBkkk5gbc67FTaL7XIGa2w1L0Xbgc" crossorigin="anonymous"> <!-- custom css --> <link rel="stylesheet" href="indexStyle.css"> <title>BLANK</title> </head> <body> <!-- Design the navbar --> <nav id="mainNavbar" class="navbar navbar-expand-md navbar-dark bg-dark py-0 fixed-top"> <a href="main.html" class="navbar-brand"><i class="fas fa-pencil-ruler mr-2"></i>BLANK</a> <!-- hamburger menu when shrinked --> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navLinks"> <span class="navbar-toggler-icon"></span> </button> <div class="colapse navbar-collapse" id="navLinks"> <ul class="navbar-nav"> <li class="nav-item dropdown"> <a href="#" class="nav-link dropdown-toggle mr-2" id="navbarDropdownMenuLink" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> ABOUT </a> <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"> <a href="about.html" class="dropdown-item">ABOUT US</a> <a href="#" class="dropdown-item">OUR TEAM</a> <a href="#" class="dropdown-item">OUR MISSION</a> <a href="#" class="dropdown-item">CONTACT US</a> </div> </li> <li class="nav-item"> <a href="#" class="nav-link mr-2">PARENTS/GUARDIANS</a> </li> <li class="nav-item"> <a href="#" class="nav-link mr-2">STUDENTS</a> </li> </ul> </div> </nav> <section> <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel"> <ul class="carousel-indicators"> <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li> <li data-target="#carouselExampleIndicators" data-slide-to="1"></li> <li data-target="#carouselExampleIndicators" data-slide-to="2"></li> </ul> <div class="carousel-inner"> <div class="carousel-item active"> <img src="https://www.ahtcloud.com/images/ahttms_mock.jpg" class="d-block w-100" alt="..."> </div> <div class="carousel-item"> <img src="https://www.ahtcloud.com/images/ahttms_mock.jpg" class="d-block w-100" alt="..."> </div> <div class="carousel-item"> <img src="https://www.ahtcloud.com/images/ahttms.jpg" class="d-block w-100" alt="..."> </div> </div> <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev"> <span class="carousel-control-prev-icon" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next"> <span class="carousel-control-next-icon" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div> </section> <!-- Mid Section --> <div class="container text-center"> <h3 class="display-5" id="big-title">A New Way of Learning</h3> <p>Join us for free exclusive free classes</p> </div> <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script> <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 src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> </body> </html>
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