将每5行划分为5列

def split_into_columns(data, rows_per_group, columns_per_group):
    result = []
    for i in range(0, len(data), rows_per_group):
        group = data[i:i+rows_per_group]
        columns = [group[j:j+columns_per_group] for j in range(0, len(group), columns_per_group)]
        result.append(columns)
    return result

data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
rows_per_group = 5
columns_per_group = 5

result = split_into_columns(data, rows_per_group, columns_per_group)
print(result)

[[[1, 2, 3, 4, 5], [6, 7, 8, 9, 10], [11, 12, 13, 14, 15], [16, 17, 18, 19, 20]]]