如果列表为空，则返回 None

Question

I have this function:

def get_min(int_list):
    if len(int_list) == 0:
        return None

Basically, if an empty list is passed, it should return "None" in the terminal:

python3 -i PA03.py
get_min([])

As I said, it should return "None" in the console but it's printing nothing. I'm not allowed to use print().

Answer 1

You must return "None" and you can use this:

import sys
sys.stdout.write(get_min([]))