jstl forEach 使用小技巧

<c:forEach items="${tp.options }" var="op" varStatus="vsop">
									<c:if test="${vsop.count % 2 eq 1}">
										<tr>
									</c:if>
									<td><input name="op${vstp.index + 1}" type="checkbox" />${op.name}</td>
									<c:if test="${vsop.count % 2 eq 0}">
										<c:choose>
											<c:when test="${vsop.last}">
													<td>&nbsp;</td>
													</tr>
											</c:when>
											<c:otherwise>
													</tr>
											</c:otherwise>
										</c:choose>
									</c:if>
								</c:forEach>