python_chapter10_1

python内置模块

sys

显示本地字节序的指示符

import sys
print(sys.byteorder)

little

显示与python解释器有关的版权信息

print(sys.copyright)

Copyright (c) 2001-2022 Python Software Foundation.
All Rights Reserved.

Copyright (c) 2000 BeOpen.com.
All Rights Reserved.

Copyright (c) 1995-2001 Corporation for National Research Initiatives.
All Rights Reserved.

Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam.
All Rights Reserved.

显示python解释器再磁盘上的存储路径

print(sys.executable)

D:\Anaconda\python.exe

显示在当前系统中保存文件所用的字符集

print(sys.getfilesystemencoding()) 

utf-8

显示python整数支持的最大值

print(sys.maxsize)

9223372036854775807

显示python解释器所在的平台

print(sys.platform)

win32

显示当前python解释器的版本消息

print(sys.version)

3.9.12 (main, Apr  4 2022, 05:22:27) [MSC v.1916 64 bit (AMD64)]

显示python解释器的主版本号

print(sys.winver)

3.9

获取运行参数

输出argv列表的长度

from sys import argv
print(len(argv))

3

遍历argv列表的每一个元素

for arg in argv:
    print(arg)

D:\Anaconda\lib\site-packages\ipykernel_launcher.py
-f
C:\Users\admin\AppData\Roaming\jupyter\runtime\kernel-e7af7e9b-a139-48dc-be96-afd3e845dc51.json