编了个简单的游戏，模仿经典游戏俄罗斯方块。左右方向键控制方块的水平位置，上方向键旋转方块，END键水平翻转之。有简单的积分功能，并能根据得分多少调整游戏难度，即方块下落速度。-编了个simple games, to imitate the classic game Tetris. Arrow keys to control the box around the horizontal position, rotate the arrow keys on the box, END key level

求积分,可以计算被积函数高震荡的一维积分- D01AKF IS AN ADAPTIVE INTEGRATOR, ESPECIALLY SUITED TO C STRONGLY OSCILLATORY NON-SINGULAR INTEGRANDS, WHICH CALCULATES C AN APPROXIMATION TO THE INTEGRAL OF A FUNCTION OVER A FINITE C INTERVAL (A,B) C C