题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
from collections import deque
def read_first_k_items(n,k):
str_n =list(n)
queue = deque()
if k >= 1 and k <= 1000:
for items in range(0,k):
queue.append(str_n[items])
return str(''.join(queue))
if __name__=='__main__':
n,k = str(input()),int(input())
print(read_first_k_items(n,k))
将字符串n转化为list，然后遍历前n个元素