2020年，面对突如其来的新冠疫情，高三学子迫不得已接受线上教学。当时QQ远程视频模式还不支持屏幕画笔，而我们高中常用的希沃白板中的屏幕画笔需要另外购买授权，否则无法安装在老师的个人电脑上。
OnePen为此而来。
In 2020, facing the sudden new crown epidemic, senior middle school students are forced to accept online teaching. At that time, the QQ remote video mode did not support screen pens, and the screen pens in the Seewo whiteboard commonly used in our high schools need to be purchased separately, otherwise they cannot be installed on the teacher's personal computer.
OnePen is here for this.
OnePen是一款支持调整画笔颜色、粗细，橡皮模式，保存截图的屏幕画笔。
OnePen is a screen pen that supports adjusting pen color, thickness, eraser mode, and saving screenshots.
本项目实属雏作，当时只想着尽可能快地完成开发，并且由于高三学业繁忙，所以没有做进一步的优化。
This project is really a rudimentary work. At that time, I only wanted to complete the development as quickly as possible, and due to the busy senior high school studies, no further optimization was made.
本项目于2021年7月23日开源。 This project was open sourced on July 23, 2021.