Don't make a mistake, your drawings are usually drawn with protel99 or DXP2004 software, which contains various symbols of electronic components. After taking it out, it can be connected with wires. After painting, you can copy and paste it into WORD. I want to draw a circuit diagram with WORD, but I think it is difficult for even WORD application experts to draw it. You can buy software for twenty or thirty yuan in the computer city, but many of the online downloads can't be activated.