为什么我在下面的函数中没有得到 output？

Question

s = input()
k=input()
def string():
    n=0
    index=0
    while (k+n)<len (s):
        string= s[index:(k+n)]
        index+=1
        n+=1
    return string

I want to return the substrings of the input string

Answer 1

First of all indent the code

s = input()
k=input()
def string():
    n=0
    index=0 
    while (k+n)<len (s):
        string= s[index:(k+n)]
        index+=1
        n+=1
    return string

afterwards make sure when your calling the function make use of print function Ex print(string())