▍1. project1
音乐计算器的设计与实现。完成加减与或比较计算,能显示进位借位零位,能根据结果的正负发出两首不同的音乐。(Design and implementation of music calculator. Complete addition and subtraction and comparison calculation, can display carry and borrow zero, can send out two different music according to the positive and negative results.)