the general speed of the program • 視窗寬度 = 640 # size of window's width in pixels • 視窗高度 = 480 # size of windows' height in pixels • 揭示速度 = 8 # speed 盒子們' sliding reveals and covers • 盒子大小 = 40 # size of 盒子 height & width in pixels • 間隔大小 = 10 # size of gap between 盒子們 in pixels • 欄寬 = 10 # number of columns of 圖標們 • 列高 = 7 # number of rows of 圖標們 • assert (欄寬 * 列高) % 2 == 0, 'Board needs to have an even number of 盒 子們 for pairs of matches.' • 地圖橫軸範圍 = int((視窗寬度 - (欄寬 * (盒子大小 + 間隔大小))) / 2) • 地圖縱軸範圍 = int((視窗高度 - (列高 * (盒子大小 + 間隔大小))) / 2)