该程序实现重力勘探中的布格重力场校正，程序包括，地形校正，中间层校正，高度校正，纬度校正，程序较为复杂，但注释清楚利用理解。(The programis about of the Bouguer gravity field correction, including terrain correction in gravity exploration, the middle layer height correction, correction, correction of latitude, t