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                【基礎用法】 名稱:if 功能:條件判斷,比switch判斷標簽更靈活些,視個人習慣而用。 語法: {eyou:if condition='($eyou.field.has\_children > 0)'} 當前欄目列表有下級欄目 {eyou:else /} 當前欄目列表沒有下級欄目 {/eyou:if} 文件: 無 參數: condition='' 原生php語法條件判斷 底層字段: 無 ? 【更多示例】 \-------------------------------示例1-------------------------------- 描述:多層次判斷 {eyou:if condition='($eyou.field.has\_children == 1)'} 當前欄目列表的欄目ID有1個下級欄目 {eyou:elseif condition='($eyou.field.has\_children == 2)' /} 當前欄目列表的欄目ID有2個下級欄目 {eyou:else /} 當前欄目列表的欄目ID有N個下級欄目 {/eyou:if} \-------------------------------示例2-------------------------------- 描述:if標簽之間嵌套 {eyou:if condition='($eyou.field.has\_children > 0)'} > {eyou:if condition='($eyou.field.has\_children == 1)'} > 當前欄目列表的欄目ID有1個下級欄目 > {eyou:elseif condition='($eyou.field.has\_children == 2)' /} > 當前欄目列表的欄目ID有2個下級欄目 > {eyou:else /} > 當前欄目列表的欄目ID有N個下級欄目 > {/eyou:if} {/eyou:if}
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