Python 如何将for循环中的用户输入保存为整数和字符串

用户希望输入如下所示的数据，并将N保存为整数列表，将B保存为字符串列表

输入：

2
hello world
3
how are you
5
what are you doing man

然后我想保存这两个列表，如下所示：

N=[2,3,5]
B=['hello world','how are you','what are you doing man']

我从下面的代码开始，但我不知道如何将其放入循环中保存所有代码

N=list(map(int, input()))
B = list(map(str, input().split())) 

---

您可以执行以下操作：

N, B = lists = [], []

for i in range(6):
    lists[i%2].append(input())

N = list(map(int, N))

或者，也许不那么神秘：

aux = [input() for _ in range(6)]

N = list(map(int, aux[::2]))
B = aux[1::2]

---

一种方法非常简单和明确。可以使用

while

循环保持提示滚动，直到发出exist命令（在本例中为：

x

）

例如：

N, B = [], []

while True:
    print('Enter an integer, then string (or [x] to exit):')
    n = input()
    if n != 'x':
        N.append(int(n))
        B.append(input())
    else:
        break

提示：

Enter an integer, then string (or [x] to exit):
5
Hello.
Enter an integer, then string (or [x] to exit):
15
How are you?
Enter an integer, then string (or [x] to exit):
20
Very well, thank you.
Enter an integer, then string (or [x] to exit):
x

输出：

N
>>> [5, 15, 20]

B
>>> ['Hello.', 'How are you?', 'Very well, thank you.']

[2, 3, 5]
['hello world', 'how are you', 'what are you doing man']

---

一个实时python记事本怎么样：

N = []
B = []
i = 0
while True:
    lst = B if i % 2 else N
    i += 1
    text = input()
    lst.append(text)
    if lst:
        if not text and not lst[-1]:
            lst.pop()
            break
N = list(map(int, N))
print(N)
print(B)

只需运行上面的代码，然后键入，直到按ENTER键两次，不使用其他字符。 输入：

输出：

N
>>> [5, 15, 20]

B
>>> ['Hello.', 'How are you?', 'Very well, thank you.']

[2, 3, 5]
['hello world', 'how are you', 'what are you doing man']