javascript - JQuery UI 对话框不显示

Question

当我单击按钮时，我尝试使用 JQuery UI 显示“对话框”，但它没有显示。我的程序有问题吗？

这是我的代码:

$(function() {
  $("#mode").click(function() {
    $("#dialog").dialog("open");
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="mode" type="button" class="btn-modalita link">change mode</button>

<div id="dialog" title="Empty the recycle bin?">
  <p>
    <span class="ui-icon ui-icon-alert" style="float:left; margin:12px 12px 20px 0;">
    </span>you are changing mode. Are you sure?
  </p>
</div>

Answer 1

初始化并隐藏对话框，然后就可以了。

$(function() {
  $("#dialog").dialog({autoOpen: false});
  
  $("#mode").click(function() {
    $("#dialog").dialog("open");
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://code.jquery.com/ui/1.12.1/themes/cupertino/jquery-ui.css" rel="stylesheet"/>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>

<button id="mode" type="button" class="btn-modalita link">change mode</button>

<div id="dialog" title="Empty the recycle bin?">
  <p>
    <span class="ui-icon ui-icon-alert" style="float:left; margin:12px 12px 20px 0;">
    </span>you are changing mode. Are you sure?
  </p>
</div>