When the enterprise WeChat broadcasts live, you can use the mobile phone as a handwriting board. Just download and install the Schiavo Teaching Assistant APP on your mobile phone and computer. After the mobile phone scan code is connected to the computer, select screen synchronization. In this way, click on the brush tool in the right column, draw and write on the mobile phone, and the scribbled content will be synchronized to the computer. Click it again and it will switch to the mouse. You can enlarge and move the desktop with two fingers, which makes writing more convenient.