// 补充 public static VInt Distance(VInt3 a, VInt3 b) { long s = IntMath.SqrtLong((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y) + (a.z - b.z) * (a.z - b.z)); return(new VInt(s * PrecisionFactor)); }