我正在尝试在使用 bootbox 插件提交表单时弹出确认消息。问题是我不知道如何选择表单标签内的按钮。在下面的示例中,确认消息确实适用于表单标签之外的按钮,但不适用于里面的按钮。如何选择包裹在表单标签内的这个按钮?
<div class="bs-example">
<div class="col-md-4 col-md-offset-4">
<form action="#" method="POST">
<div class="form-group">
<input type="username" class="form-control" id="inputEmail" placeholder="Username">
</div>
<div class="form-group">
<input type="email" class="form-control" id="inputEmail" placeholder="Email">
</div>
<div class="form-group">
<input type="password" class="form-control" id="inputPassword" placeholder="Password">
</div>
<div class="form-group">
<input type="password" class="form-control" id="inputPassword" placeholder="Repeat password">
</div>
<div class="checkbox">
<label><input type="checkbox"> Remember me</label>
</div>
<button class='btn btn-signup btn-signup-sm' type="submit">Sign up</button>
</form>
</div>
</div>
<button class='btn btn-signup btn-signup-sm' type="submit">Sign up</button>
<script type="text/javascript">
$(document).ready(function(){
$('.btn').on('click', function(){
bootbox.alert("hello there");
});
});
</script