擅长:python、mysql、java
<p>问题出在HTML中:</p>
<pre><code><select name="Quiz">
{% for quiz in quizzes %}
<option value="{{ quiz }}">{{ quiz.ID }}</option>
{% endfor %}
</select>
<select name="Student">
{% for student in students %}
<option value="{{ student }}">{{ student.ID }}</option>
{% endfor %}
</code></pre>
<p>我把“测验”和“学生”作为s,用测验.ID以及学生号在值中显示为文本。它是表单返回的选项值。在</p>
<p>它应该是:</p>
^{pr2}$