python - sys.exit(0) 和 os._exit(0) 有什么区别

Question

请帮助我澄清这两个 python 语句在功能差异方面的概念:

1. sys.exit(0)

2. os._exit(0)

Answer 1

根据documentation :

os._exit():

Exit the process with status n, without calling cleanup handlers, flushing stdio buffers, etc.

Note The standard way to exit is sys.exit(n). _exit() should normally only be used in the child process after a fork().