import os

path = "/etc"
files = []
for name in os.listdir("/etc/"):
    if os.path.isfile(os.path.join(path, name)):
        files.append(name)

print(files)	
	
		

随机抽取一个文件

		
import os
from random import choice

path = "/etc"
files = []
for name in os.listdir("/etc/"):
    if os.path.isfile(os.path.join(path, name)):
        files.append(name)

file = choice(files)
print(file)