双循环调用子ID标签实现方法例

双循环调用子ID标签实现方法例：
双循环{{king:article listid="21"}}这是主ID
{king:article type="new" number="8" listid="sub"}这里用sub就调用21ID下的所有子ID了

双循环结尾{{/king}}

我这样写通过了
完整例子
{{king:article listid="21"}}
{king:article type="new" number="8" listid="sub"}
<li><a href="(king:path/)" target="_blank">(king:title/)</a><span>(king:listname/)</span></li>{/king}{{/king}}

还看不明白，看我以前调用方法
{king:article type="new" number="3" listid="22,23,24,25,26,27,28,29,30,31,32,33,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59"}
<li><p><a href="(king:path/)"><img src="(king:image width="131" height="107"/)" alt="(king:title/)" target="_blank" border="0"/></a></p><h1><a href="(king:path/)" target="_blank">(king:title size="18"/)</span></a></h1></li>{/king}