list调用评论数据怎么判断评论如果有回复显示回复数

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<div class="xpinglun" style="height: auto;">
					<ul>
						{list action=comment module=news cid=$id more=1 order=inputtime page=1 pagesize=10 urlrule=$urlrule}
						<li class="ds-post">
							<div class="pllist">
								<div class="pltx">
									<img src="{dr_avatar($t.uid)}" >
								</div>
								<div class="plnr">
									<div class="plnrbt">{$t.author}</div>
									<p>{dr_sns_content($t.content)}</p>
									<div class="plnrtp">
										<span class="plnrtp-time">{dr_fdate($t.inputtime)}</span>
										<a class="ds-post-reply"  target="_blank" href="javascript:void(0);" onclick="dr_reply_show({$t.id}, '{$t.author}')">
											<span class="icon-comments-o text-main"></span>
											回复
										</a>
										<a  target="_blank" href="javascript:void(0);" onclick="dr_zc_comment({$t.id})">
											<span class="icon-thumbs-o-up text-main"></span>
											支持(<span id="dr_comment_zc_{$t.id}">{$t.support}</span>)
										</a>
										<a  target="_blank" href="javascript:void(0);" onclick="dr_fd_comment({$t.id})">
											<span class="icon-thumbs-o-down  text-main"></span>
											反对(<span id="dr_comment_fd_{$t.id}">{$t.oppose}</span>)
										</a>
										{if $member.adminid}
										<a   target="_blank" href="javascript:void(0);" onclick="dr_delete_comment({$t.id})">
											<span class="icon-times  text-red"></span>
											删除
										</a>
										{/if}
										<a style="float: right">评分：
										{if $t.sort1==1}
										<em class="text-red">★</em>
										{else if $t.sort1==2}
										<em class="text-red">★ ★</em>
										{else if $t.sort1==3}
										<em class="text-red">★ ★ ★ </em>
										{else if $t.sort1==4}
										<em class="text-red">★ ★ ★ ★ </em>
										{else if $t.sort1==5}
										<em class="text-red">★ ★ ★ ★ ★</em>
										{/if}
										</a>
									</div>
								</div>
							</div>
							<div id="ds-reset">
								<div class="plk" id="dr_reply_{$t.id}" style="display:none;"></div>
							</div>
						</li>
							{if $t.in_reply}
							<ul class="xxpinglun">
								{list action=comment module=news cid=$id reply=$t.id num=1 order=inputtime return=r}
								<li class="ds-post">
									<div class="pllist">
										<div class="pltx">
											<img src="{dr_avatar($r.uid)}" >
										</div>
										<div class="plnr">
											<div class="plnrbt">{$r.author}</div>
											<p>{dr_sns_content($r.content)}</p>
										</div>
										<div class="plnrtp">
										<span class="plnrtp-time">{dr_fdate($r.inputtime)}</span>
										{if $member.adminid}
										<a   target="_blank" href="javascript:void(0);" onclick="dr_delete_comment({$r.id})">
											<span class="icon-times  text-red"></span>
											删除
										</a>
										{/if}
										</div>
									</div>
								</li>
								{/list}
							</ul>
							
							{/if}
						{/list}
					</ul>
					<div class="pingpage">
						{$pages}
					</div>
				</div>

{if $t.in_reply}   这个可以判断到   
{list action=comment module=news cid=$id reply=$t.id order=inputtime return=r}
reply=$t.id  这个识别不了  用这个调用不出来  reply=$id 用这个也调用不出来