导航栏（折叠）按钮不起作用 Bootstrap 5.1.3
[英]navbar (Collapse) button doesn't work Bootstrap 5.1.3
问题描述
Navbar (Collapse) doesn't work Bootstrap 5
导航栏（折叠）不起作用 Bootstrap 5
The narbar(collapse) button doesn't on my pc, the button still show up, but it doesn't show the navbar when I click the button. narbar（折叠）按钮不在我的电脑上，该按钮仍然显示，但当我单击该按钮时它没有显示导航栏。 However, when I post the code on codeply2 (without Link to bootsrap5 and sources) the button work perfect.但是，当我在 codeply2 上发布代码（没有指向 bootsrap5 和源的链接）时，按钮工作正常。 I think the poblem is at the Link and Sources, but I don't know how to fix it.我认为问题出在链接和来源上，但我不知道如何解决。
<head> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> </body>
2 个解决方案
解决方案1
2 已采纳 2021-10-25 06:51:17
I updated your code now it's working .我更新了你的代码，现在它可以工作了。 your bootstrap 5 CSS reference is right but the JS reference is wrong you have to put this js bootstrap cnd for JS <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js" integrity="sha512-OvBgP9A2JBgiRad/mM36mkzXSXaJE9BEIENnVEmeZdITvwT09xnxLtT4twkCa8m/loMbPHsvPl0T8lRGVBwjlQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>您的 bootstrap 5 CSS 参考是正确的，但 JS 参考是错误的，您必须将此 js bootstrap cnd 用于 JS <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js" integrity="sha512-OvBgP9A2JBgiRad/mM36mkzXSXaJE9BEIENnVEmeZdITvwT09xnxLtT4twkCa8m/loMbPHsvPl0T8lRGVBwjlQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<head> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js" integrity="sha512-OvBgP9A2JBgiRad/mM36mkzXSXaJE9BEIENnVEmeZdITvwT09xnxLtT4twkCa8m/loMbPHsvPl0T8lRGVBwjlQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> </body>
解决方案2
1 2021-10-25 06:52:26
<!doctype html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- Bootstrap CSS --> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <title>Hello, world!</title> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> <!-- Option 1: Bootstrap Bundle with Popper --> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script> </body> </html>
Put a script tag always inside the bottom of the body tag.将脚本标签始终放在 body 标签的底部。
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