ע⣺ַҪõŻ˫ţҲʹԭPHP룻
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{pboot:if('a'=='b')}
1
{else}
2
{/pboot:if}

ʾһIFʹPHPʾ
{pboot:if(date('Y')==2018)}2018{/pboot:if} 


ʾĿʾ
<div class="nav">
<dl>
<dt><a href="{pboot:sitepath}/" {pboot:if(0=='{sort:scode}')}class='active'{/pboot:if}>ҳ</a></dt>
</dl>

{pboot:nav parent=0}
<dl>
<dt><a href="[nav:link]" {pboot:if('[nav:scode]'=='{sort:tcode}')}class='active'{/pboot:if}>[nav:name]</a></dt>
<dd>
{pboot:2nav parent=[nav:scode]}
<a href="[2nav:link]"  {pboot:if('[2nav:scode]'=='{sort:scode}')}class='active'{/pboot:if}>[2nav:name]</a> |
{/pboot:2nav}
</dd>
</dl>
{/pboot:nav}

</div>

ʾǶIF
{pboot:if('a'=='b')}
{pboot:2if('a'=='b')}
1
{2else}
2
{/pboot:2if}
{else}
3
{/pboot:if}