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                # 默認值輸出 [上一頁](94.html "上一頁")[下一頁](96.html "下一頁") 如果輸出的模板變量沒有值,但是我們需要在顯示的時候賦予一個默認值的話,可以使用default語法,格式: {$變量|default="默認值"} 這里的default不是函數,而是系統的一個語法規則,例如:`{$user.nickname|default="這家伙很懶,什么也沒留下"}`對系統變量的輸出也可以支持默認值,例如:`{$Think.post.name|default="名稱為空"}`默認值支持Html語法。 [上一頁](94.html "上一頁")[下一頁](96.html "下一頁")
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