What is the usage of sys.exit in python

In python, the sys.exit() function is used to exit the program. When the sys.exit() function is called, the Python interpreter will exit the program immediately and return a status code. Typically, a status code of 0 indicates that the program exited normally, while a non-zero status code indicates that the program exited abnormally. For example:

import sys

# 正常退出程序
sys.exit(0)

# 异常退出程序
sys.exit(1)

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