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 |