python3.0 列表逆向相加求和？-灵析社区

你是指求索引1的后缀和吗 a = [[1,100],[2,23],[6,456],[2,123],[6,456],[2,123],[6,456]] res = [0] * len(a) res[-1] = a[-1][1] for i in range(len(a) - 2, -1, -1): res[i] = res[i + 1] + a[i][1] print(res) # [1737, 1637, 1614, 1158, 1035, 579, 456]