如何获取每行和列的总和

# 示例数据
data = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

# 获取每行的总和
row_sums = []
for row in data:
    row_sum = sum(row)
    row_sums.append(row_sum)

# 获取每列的总和
col_sums = []
num_cols = len(data[0])
for col in range(num_cols):
    col_sum = sum(row[col] for row in data)
    col_sums.append(col_sum)

# 打印结果
print("每行的总和：", row_sums)
print("每列的总和：", col_sums)