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Areaandperimeter
- 定义一个点类,在此基础上派生圆类、球类、椭圆类、椭球体、圆柱体, 圆锥体;长方形,正方形,正方体,正方体。要求:计算各类形状的面积,表面积,体积。-Define a point class, on this basis, derived round classes, ball, oval classes, spheroidal, cylinder, cone rectangular, square, cube, cube. Requirements: calculate the area of