Question

<!DOCTYPE html>
<html>
<head>
    <title> Bootstrap navbar </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" type="text/css" href="bootstrap.min.css">
</head>
<body>

    <nav class="navbar navbar-expand-lg navbar-light bg-light">
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-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">
    <a class="navbar-brand" href="#">Hidden brand</a>
    <ul class="navbar-nav mr-auto mt-2 mt-lg-0">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>


<script src="bootstrap.min.js"></script>
<script src="jquery-slim.min.js"></script>
<script src="popper.min.js"></script>

</body>
</html>

这是我的完整引导程序Navbar代码，当我们在移动设备上查看它时它会折叠，但是当我们选择按钮打开Navbar时，它没有打开。

Answer 1

好的，问题是你的js文件的顺序。 Jquery文件需要首先才能使其他文件正常工作，因为它们使用的是jquery。

<script src="bootstrap.min.js"></script>
<script src="jquery-slim.min.js"></script>
<script src="popper.min.js"></script>

它现在可以使用了。

<script src="jquery-slim.min.js"></script>
<script src="bootstrap.min.js"></script>
<script src="popper.min.js"></script>

选择按钮时，Bootstrap Navbar未打开

1 个答案: