中文说明：关键点手动标记程序，可实现手动标记关键点，程序开始后，用鼠标定位关键点位置，单击后会将该点的坐标写入txt文档中，可以实现多幅图像的批处理，还可以单击右键对上一点进行修改
English Description：
Key points of manual tagging program, manually mark the key points can be realized, after the program begins, use the mouse to locate critical points, after clicking the coordinates of the point are written in txt documents, you can implement batch processing multiple images, you can also modify point on right-click