后台添加数据：   model模板   question.php底部添加

	public function get_anws_index($q_id)
	{


	$answer_content = $this->fetch_row('answer',"question_id = '".intval($q_id)."'",'answer_id DESC');
	return $answer_content;


	}

函数调用：/explore/main.php  161行左右   循环里添加  

$posts_list[$key]['answer_index']  = $this->model('question')->get_anws_index($val['question_id']);

     前台展现    explore/ajax/list.tpl.htm

<!--修改5/7/19 huifu-->
		<p id="miaoshu">

			<?php if($val['answer_info']['answer_content']){?>

			         <?php echo cjk_substr(strip_ubb($val['answer_info']['answer_content']), 0, 130, 'UTF-8', '...'); ?>
			<?php }else{?>

                          <?php echo cjk_substr(strip_ubb($val['answer_index']['answer_content']), 0, 130, 'UTF-8', '...');?>
                          <?php }?>


		</p>
		


		<!--end huifu-->