Bootstrap下拉菜单不工作？

你好，我创建了一个新的引导网站，由于某种原因下拉菜单将无法正常工作。当我点击它时，它什么都不做。Bootstrap下拉菜单不工作？

下面是代码我在我的index.php文件体：

<nav class="navbar navbar-default" role="navigation"> 
<div class="container-fluid"> 
    <div class="navbar-header"> 

     <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar1"> 

      <span class="sr-only">Toggle navigation</span> 

      <span class="icon-bar"></span> 

      <span class="icon-bar"></span> 

      <span class="icon-bar"></span> 

     </button> 

     <a class="navbar-brand" href="index.php">CookieCodec</a> 

    </div> 

    <div class="collapse navbar-collapse" id="navbar1"> 

     <ul class="nav navbar-nav navbar-right"> 

      <?php if (isset($_SESSION['usr_id'])) { ?> 
    <li class="dropdown"> 
       <a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-user"></span> Signed in as <?php echo $_SESSION['usr_name']; ?></a> 

       <ul class="dropdown-menu" role="menu"> 
      <li><a href="#">My Profile</a></li> 
    <li><a href="#">Upload</a></li> 
    <li><a href="#">Account</a></li> 
        </ul> 
       </li> 


       <li><a href="logout.php"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li> 

      <?php } else { ?> 

      <li><a href="login.php">Login</a></li> 

      <li><a href="register.php">Sign Up</a></li> 

      <?php } ?> 

     </ul> 
    </div> 
    </div> 
</nav>

有谁知道为什么它不会工作？我错过了什么吗？

来源

2016-10-10 user5947524

你已包括在文件中的bootstrap.js文件？ – Katie

HTML很好。你只需要'bootstrap.min.js'文件 - 检查这个[工作codepen]（http://codepen.io/PleaseBugMeNot/pen/LRdozR） - 从这里得到它https://maxcdn.bootstrapcdn.com/ bootstrap/3.3.7/js/bootstrap.min.js –

谢谢您的输入！ – user5947524

她是一个设置你的演示。为了更好的理解，你可以阅读这http://getbootstrap.com/getting-started/ &你也可以阅读这也用于快速安装环境。 https://www.tutorialspoint.com/bootstrap/bootstrap_environment_setup.htm

<!DOCTYPE html> 
 
<html> 
 
<head> 
 

 
<meta charset="utf-8"> 
 
<meta name="viewport" content="width=device-width, initial-scale=1"> 
 

 
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> 
 
</head> 
 
<body> 
 
<nav class="navbar navbar-default" role="navigation"> 
 
    <div class="container-fluid"> 
 

 
    <div class="navbar-header"> 
 

 
     <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar1"> 
 

 
      <span class="sr-only">Toggle navigation</span> 
 

 
      <span class="icon-bar"></span> 
 

 
      <span class="icon-bar"></span> 
 

 
      <span class="icon-bar"></span> 
 

 
     </button> 
 

 
     <a class="navbar-brand" href="index.php">CookieCodec</a> 
 

 
    </div> 
 

 
    <div class="collapse navbar-collapse" id="navbar1"> 
 

 
     <ul class="nav navbar-nav navbar-right"> 
 

 
      <?php if (isset($_SESSION['usr_id'])) { ?> 
 
    <li class="dropdown"> 
 
       <a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-user"></span> Signed in as <?php echo $_SESSION['usr_name']; ?></a> 
 

 
       <ul class="dropdown-menu" role="menu"> 
 
      <li><a href="#">My Profile</a></li> 
 
    <li><a href="#">Upload</a></li> 
 
    <li><a href="#">Account</a></li> 
 
        </ul> 
 
       </li> 
 

 

 
       <li><a href="logout.php"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li> 
 

 
      <?php } else { ?> 
 

 
      <li><a href="login.php">Login</a></li> 
 

 
      <li><a href="register.php">Sign Up</a></li> 
 

 
      <?php } ?> 
 

 
     </ul> 
 

 
    </div> 
 

 
</div> 
 
</nav> 
 

 
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script> 
 

 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> 
 
</body> 
 
</html>

来源

2016-10-10 16:49:00

是的！这工作！谢谢 – user5947524

不客气。 :) –

Bootstrap下拉菜单不工作？

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