与矩阵及其位置斗争

Question

我正在尝试解决这个程序（python），其中有一个矩阵，我应该显示每个行，每个位置和他的价值

我正在尝试这句话，但它不起作用：

m = [
    [3, 8, 2],
    [2, 3, 1],
    [4, 2, 9]
]



for i in range(len(m)):
    print('the row number',i+1,'and the position',m[0][i],'has a value of',m[i][0])

Answer 1

您应该有一个嵌套循环以在每个原始和每个col上打印

m = [
    [3, 8, 2],
    [2, 3, 1],
    [4, 2, 9]
]

for i in range(len(m)):
    for j in range(len(m[i])):
        print('the row number', i + 1, 'and the position', j + 1, 'has a value of', m[i][j])

：

the row number 1 and the position 1 has a value of 3
the row number 1 and the position 2 has a value of 8
the row number 1 and the position 3 has a value of 2
the row number 2 and the position 1 has a value of 2
the row number 2 and the position 2 has a value of 3
the row number 2 and the position 3 has a value of 1
the row number 3 and the position 1 has a value of 4
the row number 3 and the position 2 has a value of 2
the row number 3 and the position 3 has a value of 9