一个用于单片机仿真的好软件版。不需要花钱买仿真板，直接在电脑上用这个软件连接实物图就可以了。是电子设计的必备软件。里面还有教程！-A good simulation for the single-chip version of the software. The simulation does not need to spend money to buy plates, directly on your computer to use this software to connect the physical map on it. Electronic design is an essential software. There are tutorials there!