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我想創建bootstrap餅圖,但它沒有顯示,我也沒有收到任何錯誤。Bootstrap餅圖不顯示
<script type="text/javascript" src="//cdn.jsdelivr.net/snap.svg/0.1.0/snap.svg-min.js"></script>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2>
</div>
</div>
<div class="row">
<div class="col-md-3">
<ul data-pie-id="svg">
<li data-value="60">Water Buffalo (60)</li>
<li data-value="20">Bison (20)</li>
<li data-value="12">Sheep (12)</li>
<li data-value="32">Goat (32)</li>
<li data-value="50">Shetland Pony (50)</li>
</ul>
</div>
<div class="col-md-3">
<div id="svg"></div>
</div>
<div class="col-md-3">
<ul data-pie-id="my-cool-chart" data-options='{"donut": "true"}'>
<li data-value="36">Pepperoni</li>
<li data-value="14">Sausage</li>
<li data-value="8">Cheese</li>
<li data-value="11">Mushrooms</li>
<li data-value="7">Chicken</li>
<li data-value="24">Other</li>
</ul>
</div>
<div class="col-md-3">
<div id="my-cool-chart"></div>
</div>
</div>
</div>
這是我的例子:https://jsfiddle.net/uawcr1a3/
誰能告訴我哪裏出了問題?