从一个python脚本调用另一个主脚本时，从另一个python脚本获取退出消息

# 被调用的主脚本 script2.py
def get_exit_message():
    return "退出消息"

# 调用脚本 script1.py
import script2

exit_message = script2.get_exit_message()
print(exit_message)

# 被调用的主脚本 script2.py
exit_message = "退出消息"

# 调用脚本 script1.py
import script2

exit_message = script2.exit_message
print(exit_message)

# 被调用的主脚本 script2.py
class ExitException(Exception):
    def __init__(self, message):
        self.message = message

exit_message = "退出消息"
raise ExitException(exit_message)

# 调用脚本 script1.py
import script2

try:
    script2.main()
except script2.ExitException as e:
    exit_message = e.message
    print(exit_message)