使用Jype1的Python范围问题，不能用于循环的每一列和每一行

range(start, stop[, step])

for i in range(5):
    print(i)

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

for i in range(len(matrix)):
    for j in range(len(matrix[i])):
        print(matrix[i][j], end=' ')
    print()

for j in range(len(matrix[0])):  # 假设所有行长度相同
    for i in range(len(matrix)):
        print(matrix[i][j], end=' ')
    print()

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

print("遍历每一行:")
for i in range(len(matrix)):
    for j in range(len(matrix[i])):
        print(matrix[i][j], end=' ')
    print()

print("\n遍历每一列:")
for j in range(len(matrix[0])):
    for i in range(len(matrix)):
        print(matrix[i][j], end=' ')
    print()