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                企業??AI智能體構建引擎,智能編排和調試,一鍵部署,支持知識庫和私有化部署方案 廣告
                有時候訂購行為會跟「數量」有關。例如,你的應用程序可能會依照帳號的用戶人數,每人每月收取 $10 元。你可以使用 increment 和 decrement 方法簡單的調整訂購數量: ~~~ $user = User::find(1); $user->subscription()->increment(); // Add five to the subscription's current quantity... $user->subscription()->increment(5); $user->subscription()->decrement(); // Subtract five to the subscription's current quantity... $user->subscription()->decrement(5); ~~~
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