python读取txt前几行

# -*- coding:utf-8 -*-
"""
作者：sunli
日期：2021年12月09日
"""

n=0
with open("Down.txt","r", encoding='UTF-8') as f:
    with open("Downs.txt", "w", encoding='UTF-8') as f1:
     for line in f.readlines():
      n=n+1
      if n <=1000:
          print (line)
          f1.writelines(line)