为啥报错，帮我解答一下
1 2 3 4 5 6 7 8 9 10 11 12 | # Enter a codeL = [[1, 2, 3], [5, 3, 2], [7, 3, 2]]x = 0while x < 3: S = 1 for a in L: for b in a: if a.index(b) == x S = S * b print(S) x += 1 |
