擅长:python、mysql、java
<p>在您的<code>algo.html</code>模板中,您需要将一个表单提交回同一个url <code>/contact</code>,因为在那里您要检查<code>swipeleft</code>的值:</p>
<pre><code><form action="{{ url_for('contact') }}" method="post">
<input type = "submit" name = "submit" value = "swipeleft" />
<input type = "submit" name = "submit" value = "swiperight" />
</form>
</code></pre>