带有数字列表的 Python for 循环未按预期工作

Question

我正在尝试打印列表，删除项目 0，然后再次打印列表中的所有项目。这非常简单，但它没有按我的预期工作。它无法完成所有列表项的 for 循环。

我尝试首先使用 del 和 pop() 方法在列表中使用 range 函数。这不起作用，所以我一直在使用列表并得到相同的结果。

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

for seal in seals:
    print(seals)
    seals.pop(0)

Expected Result
[1, 2, 3, 4, 5, 6, 7, 8, 9]
[2, 3, 4, 5, 6, 7, 8, 9]
[3, 4, 5, 6, 7, 8, 9]
[4, 5, 6, 7, 8, 9]
[5, 6, 7, 8, 9]
[6, 7, 8, 9]
[7, 8, 9]
[8, 9]
[9]

Actual Result
[1, 2, 3, 4, 5, 6, 7, 8, 9]
[2, 3, 4, 5, 6, 7, 8, 9]
[3, 4, 5, 6, 7, 8, 9]
[4, 5, 6, 7, 8, 9]
[5, 6, 7, 8, 9]

Answer 1

Python在这里很有趣，所以你必须对他非常清楚:D:

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

for seal in seals[:]:
    print(seals)
    seals.pop(0)

或者使用范围:

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

for seal in range(len(seals)):
    print(seals)
    seals.pop(0)

两者都重现:

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