abc quantity to alpha beta conversion

使用了alpha-beta搜索，实现了简单的人机博弈。由于估值函数比较简单，目前棋力不是很强。-Use the alpha-beta search to achieve a simple man-machine game. Since the valuation function is relatively simple, there is not very strong chess.

该软件是针对地下导线测量的改进方法设计的，即不必在地下对全站仪进行精确的点下对中，在全站仪上安装一个偏心测量盘，通过对实际测量结果进行归化改正，从而得到理论正确的测量结果。该软件需要用户输入指定参数，如偏心距e，实际测量角度β，实际测量距离L等，从而计算出理论测量角度α和理论测量距离S(The software is designed according to the improved method of underground traverse survey, which do not hav