模块 –SYS

模块 –SYS

os模块是跟操作系统的交互

sys是跟python解释器的交互

sys.argv	命令行参数List，第一个元素是程序本身路径 返回一个列表	In [218]: sys.argv Out[218]: ['C:\\Python35-32\\Scripts\\ipython']
sys.exit(n)	exit(...) exit([status])	In [220]: sys.exit(0)
sys. version	显示版本	In [221]: sys.version
sys.path	python的环境变量列表 返回模块的搜索路径，初始化时使用PYTHONPATH环境变量的值	In [222]: sys.path 返回一个list
sys.platform	返回平台信息	In [223]: sys.platform Out[223]: 'win32' In [49]: sys.platform Out[49]: 'linux'
ys.stdout.write("hhhh")	在控制台显示消息	In [225]: sys.stdout.write("hhhh") hhhh In [226]: sys.stdout.flush()
sys.stdin.readline()	This class provides a character and line based interface to stream | I/O. There is no readinto method because Python's character strings | are immutable. There is no public constructor.	sys.stdin.readline()会将标准的输入全部获取