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請問怎么判斷不同欄目顯示不同css，如下代碼，請問判斷條件怎么寫

{if $indexc}
    <link type="text/css" rel="stylesheet" href="{HOME_THEME_PATH}index/css/index.css">
    {else if 欄目ID=1,2,3,4,5均顯示以下css}
 <link type="text/css" rel="stylesheet" href="{HOME_THEME_PATH}index/css/iconfont_fun.css" />
    {else}
 <link type="text/css" rel="stylesheet" href="{HOME_THEME_PATH}index/css/qt.css" />
 {/if}