layui 触发form select 点击

$("#yongtu").siblings("div.layui-form-select").find('dl dd[lay-value={$fangyuan["yongtu"]}]')

<div class="layui-input-block">
					<select id="yongtu" name="yongtu" lay-filter="yongtu" lay-verify="required">
						<foreach name="yongtu" item="pz">
							<option value="{$pz.lxid}" <if condition='$fangyuan["yongtu"] eq $pz["lxid"]'>selected=""</if>>{$pz.lxming}</option>
						</foreach>
					</select>
				</div>