数字电路半/全加法器
我正在上数字电路课程，我们不使用书籍，只使用讲义。在介绍加法器的部分中，我只有 2 个小示例，介绍了二进制数的加法和减法。我很确定我会在考试中遇到措辞问题，例如设计一个电路来计算某些东西等。有谁知道有任何网站有示例问题和解决方案供我查看吗？
I am taking a Digital Circuits class in which we do not use a book, only lecture notes. In the section that covers adders I only have 2 small examples covering addition and subtraction of binary numbers. I am pretty sure i am going to have worded problems in the exam such as design a circuit to count something etc. Does anyone know any sites that have example questions and solution for me to go over?
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我不知道有什么特定的网站，但我确实知道，当我参加类似的课程时，讲师很糟糕，我完全依赖教科书。这是数字设计，作者：M Morris Mano。我强烈推荐它——它有很多问题需要解决，并且有你需要的所有信息，以防你遇到困难。
I don't know of any particular sites, but I do know that when I took a similar class, the lecturer was awful and I relied entirely on the textbook. It was Digital Design, by M Morris Mano. I highly recommend it - it's got plenty of problems to go over and has all the information you need in case you get stuck on something.
维基百科是一个有用的资源。学习电子学的最佳方法是构建自己的电路，最好使用真实的硬件或使用模拟器（如果前者不可行）。
PS 您不需要加法器来对事件进行计数。级联双稳态触发器可以做到这一点。
Wikipedia is a useful resource. The best way to learn electronics is to build your own circuits, preferably with real hardware or using a simulator if the former is not practicable.
P.S. You do not need adders to count events. A cascade of bi-stable flip-flops will do this.