解决layui中button按钮点击导致页面刷新的问题

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <link rel="stylesheet" href="../../layuiadmin/layui/css/layui.css" rel="external nofollow" >
</head>
<body>
<form class="layui-form">
 <div class="layui-form-item">
 <label class="layui-form-label">输入框</label>
 <div class="layui-input-inline">
  <input type="text" name="" placeholder="请输入" autocomplete="off" class="layui-input">
 </div>
 </div>
 <div class="layui-form-item">
 <div class="layui-input-block">
  <button class="layui-btn test" >test</button>
 </div>
 </div>
</form>
 
<script src="../../layuiadmin/layui/layui.js"></script>
<script>
 layui.use(['laytpl','jquery','layer','form'],function () {
 var laytpl = layui.laytpl,
  layer = layui.layer,
  form = layui.form,
  $ = layui.$;
 
 $('.test').click(function () {
  layer.msg("test");
 });
 });
</script>
</body>
</html>

<input class="layui-btn test" >test</input>

<button type="button" class="layui-btn test" >test</button>