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第564章 逻辑电路(2 / 2)

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这就像NOT 门,它的作用是翻转输入:

输入 输出

0(否) 1(是)

1(是) 0(否)

例如:如果某个房间只有平民可以进入,那么守卫的规则就是:“如果你是贵族(A=1),我就不让你进(输出=0);如果你不是贵族(A=0),你可以进(输出=1)。”

2. 更复杂的逻辑组合(组合逻辑电路)

有一天,国王决定加强城堡的安全,于是守卫们开始合作工作,形成了更复杂的逻辑规则。这些规则就像计算机里的组合逻辑电路。

(1)贵族专属入口(AND + OR 组合)

城堡有一道秘密入口,它的规则是:

? 如果你是贵族(A=1)且持有通行证(B=1),你可以进入。

? 或者,如果你是国王的朋友(C=1),你也可以进入。

这相当于:

也就是说,守卫们检查访客:

1. 先用一个 AND 门检查 (贵族 AND 通行证)。

2. 再用一个 OR 门把 (贵族 AND 通行证) 和 国王的朋友 组合起来,决定是否开门。

贵族 (A) 通行证 (B) 国王的朋友 (C) 输出(允许进入)

这显示了如何用多个逻辑门组合成更复杂的决策。

3. 现实世界的应用

逻辑电路不仅仅是一个魔法故事,它实际上控制着现代世界的所有电子设备:

? 计算机 CPU:所有计算和决策都基于逻辑门。

? 自动门系统:比如停车场闸门,可能需要“车牌识别 AND 付费”才会打开。

? 密码锁:某些保险柜可能需要“正确密码 OR 管理员授权”才能打开。

? 电子设备:电视、智能手机、电梯等,内部都有逻辑电路控制开关。

所有这些设备的基本工作原理,都和城堡守卫的逻辑判断类似!

4. 结论

1. 逻辑门 = 守卫规则,它们控制着设备的开关状态。

2. 复杂逻辑电路 = 守卫合作,让电子设备能做更复杂的决策。

3. 逻辑电路构成了计算机的基础,就像这些守卫构成了城堡的安全体系。

所以,逻辑电路就像城堡的守卫系统,简单的判断规则组合起来,就能创造出强大的计算机和现代科技!

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