DisplayTag El表达式(闹心)

display:table name="list" pagesize="10" id="row" requestURI="SelectbyTimeAction.action"  class="mars">
			<s:if test="type=='dzq'">
					<tr>
					<td><display:column title="序号" value="${row_rowNum}"></display:column></td>
						<td>
						<display:column title="日期" value="${list[row_rowNum-1]}" href="DangZhengQunTJ.action?qhdm=${qhdm}" paramId="datetime"></display:column>
						</td>
					</tr>
				</s:if>

		</display:table>

List里面全是String