Can I let python do something when manually close the program?

Question

例如，让该程序记下日志文件，然后再手动停止它。

Answer 1

You can use atexit module: https://docs.python.org/3.5/library/atexit.html

Example:

import atexit
import time

def exit_hook():
    print("Exiting!")

atexit.register(exit_hook)

while True:
    print("looping...")
    time.sleep(1)