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<form action="#" method="post">
<table>
<tr>
<td>请选电影:</td>
<td>
<select name="moviename">
<c:forEach var="movie" items="${movies }">
<option >${movie.name }</option>
</c:forEach>
</select>
</td>
</tr>
<tr>
<td>请选影院:</td>
<td>
<select name="cinemaname" ;">
<c:forEach var="cinema" items="${cinemas }">
<option>${cinema.name }</option>
</c:forEach>
</select>
</td>
</tr>
<tr>
<td>影厅:</td>
<td>
<select name="videollname" >
<c:forEach items="${cinemas }" var="cinema">
<optgroup label="${cinema.name }"></optgroup>
<c:forEach items="${videohalls }" var="videohall">
<c:if test="${cinema.id==videohall.cinema_id }">
<option>${videohall.name }</option>
</c:if>
</c:forEach>
</c:forEach>
</select>
</td>
</tr>
</form>