使用python从文本文件中获取'n‘个唯一的随机行

import random

with open('file.txt', 'r') as f:
    lines = f.readlines()

lines = [line.rstrip() for line in lines]

n = min(n, len(lines))

indexes = random.sample(range(len(lines)), n)

result = [lines[index] for index in indexes]

for line in result:
    print(line)

import random

def get_random_lines(filename, n):
    with open(filename, 'r') as f:
        lines = f.readlines()
    lines = [line.rstrip() for line in lines]
    n = min(n, len(lines))
    indexes = random.sample(range(len(lines)), n)
    result = [lines[index] for index in indexes]
    return result

# 示例用法
filename = 'file.txt'
n = 5
random_lines = get_random_lines(filename, n)
for line in random_lines:
    print(line)