serve size inchi ratio_size ratio_dia myList piza piza = [[None for i in range(4)] for j in range(7)] piza 0 '1', '1.5', '2～3', '3～4' piza 1 'S', 'P', 'M', 'L' piza 2 math.sqrt((22.8 / 2) ** 2 / 1.5) * 2, 22.8, 25.4, 33 i 4 piza 3][i piza[2][i] / 2.54 i 4 piza 3][i piza[2][i] / 2.54 piza 4][i piza[3][i] / piza[3][0] piza 5][i math.pi * (piza[2][i] / 2) ** 2 piza 6][i piza[5][i] / piza[5][0] i 7 j 4 type('string') is type(piza[i][j]) piza[i][j] + '\t', end='' '{:.1}'.format(piza[i][j]) + '\t', end='' []