Python 3.6 中的奇怪 output

Question

我做了一个程序：

k = int(input())
n = int(input())
row = []
arr = []
quantity = 0

for i in range(k):
    row.append(1)

for i1 in range(k ** k):
    arr.append(row)
    for i in range(len(row)):
        if row[i] + 1 <= k:
            row[i] += 1
            break
        else:
            row[i] = 1
print(arr)

当我运行它时，我可以在 output 中看到一些奇怪的东西：

[[1,1],[1,1],[1,1],[1,1]]

为什么会这样？

Answer 1

这工作正常

    k = int(input())
    n = int(input())
    row = []
    arr = []
    quantity = 0

    for i in range(k):
        row.append(1)

    for i1 in range(k ** k):
        arr.append(row[::])

        for i in range(len(row)):
            if row[i] + 1 <= k:
                row[i] += 1
                break
            else:
                row[i] = 1
    print(arr)