使用Bootstrap将下拉菜单添加到按钮
要将下拉菜单添加到按钮，只需将按钮和下拉菜单包装在即可。btn-group。
您可以尝试运行以下代码以将下拉菜单添加到按钮-
示例
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel="stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<div class = "btn-group">
<button type = "button" class = "btn btn-default dropdown-toggle" data-toggle = "dropdown">
Default
<span class = "caret"></span>
</button>
<ul class = "dropdown-menu" role = "menu">
<li><a href = "#">Action</a></li>
<li><a href = "#">Another action</a></li>
<li><a href = "#">Something else here</a></li>
<li class = "divider"></li>
<li><a href = "#">Separated link</a></li>
</ul>
</div>
<div class = "btn-group">
<button type = "button" class = "btn btn-primary dropdown-toggle" data-toggle = "dropdown">
Primary
<span class = "caret"></span>
</button>
<ul class = "dropdown-menu" role = "menu">
<li><a href = "#">Action</a></li>
<li><a href = "#">Another action</a></li>
<li><a href = "#">Something else here</a></li>
<li class = "divider"></li>
<li><a href = "#">Separated link</a></li>
</ul>
</div>
</body>
</html>