<pre class="brush:bash;toolbar:false">SELECT CONCAT(',',`id`,',') sid,id FROM `ymwl_todo`<br/></pre><p><img src="http://img.80zx.com/ueditor/image/202205/1652359035839bbd.gif" title="Mysql查询字段拼接指定字符" alt="Mysql查询字段拼接指定字符"/></p>
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