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    ->first();

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2.1 whereBetweenÒªÁì

whereBetweenÒªÁìÔÊÐíÎÒÃÇÅÌÎÊÔÚÖ¸¶¨¹æÄ£Äڵļͼ ¡£ÀýÈ磬ÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏ´úÂëÀ´ÅÌÎʽ¨Éèʱ¼äÔÚ2019Äêµ½2020ÄêÖ®¼äµÄÎÄÕ£º

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2.2 orWhereÒªÁì

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$articles = DB::table('articles')
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2.3 whereHasÒªÁì

whereHasÒªÁìÔÊÐíÎÒÃÇÅÌÎʹØÁªÄ£×ÓÖÐÖª×ãɸѡÌõ¼þµÄ¼Í¼ ¡£ÀýÈ磬ÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏ´úÂëÀ´ÅÌÎÊËùÓÐÓÐ̸ÂÛµÄÎÄÕ£º

$articles = DB::table('articles')
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    ->get();

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2.4 whereInºÍwhereNotInÒªÁì

whereInºÍwhereNotInÔÊÐíÎÒÃÇƾָ֤¶¨×ֶεÄÈ¡Öµ¹æģɸѡЧ¹û ¡£ÀýÈ磬ÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏ´úÂëÀ´ÅÌÎÊÎÄÕÂ״̬Ϊ1¡¢2¡¢3µÄ¼Í¼£º

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    ->get();

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        $query->where('status', 1);
    }, '>', 5)
    ->get();

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