列表附加無效

Question

def get(i, x):
i = 0
numbers = []
while i < x:
    print ('At the top i is %d' % (i))
    numbers.append(i)

    i = i + 1
    print ("Numbers now: "), numbers
    print ("At the bottom i is %d" % (i))

print ("The numbers: ")

for num in numbers:
    print (num)
get(1,6)

因此，當我調用該函數時，結果如下：

At the top i is 0
Numbers now: 
At the bottom i is 1
At the top i is 1
Numbers now:
At the bottom i is 2
At the top i is 2
Numbers now: 
At the bottom i is 3
At the top i is 3
Numbers now: 
At the bottom i is 4
At the top i is 4
Numbers now: 
At the bottom i is 5
At the top i is 5
Numbers now: 
At the bottom i is 6
The numbers: 
0
1
2
3
4
5

那么，為什么"Numbers now: "沒有顯示任何內容？ print語句， append函數或什么有問題嗎？ 我在這里迷路了，感謝您的幫助。

Answer 1

您需要在print語句中的括號內包括numbers 。

print ("Numbers now: ", numbers)而不是print ("Numbers now: "), numbers