# ********************day22_2-sys模块 ******************* # ********************day22_2-sys模块 ******************* # ********************day22_2-sys模块 *******************# 参考资料： # python模块（转自Yuan先生） - 狂奔__蜗牛 - 博客园 # https://www.cnblogs.com/guojintao/articles/9070485.html# =====>>>>>>内容概览 # =====>>>>>>内容概览 # =====>>>>>>内容概览 ''' # ------------------------------------------------------------ # # 1、sys.argv ？？？ # # # 命令行参数List，第一个元素是程序本身路径 # ------------------------------------------------------------ # ------------------------------------------------------------ # # 2、sys.exit(n) 退出程序，正常退出时exit(0) # # # 退出程序，正常退出时exit(0) # ------------------------------------------------------------ # ------------------------------------------------------------ # # 3、sys.version # # # 获取Python解释程序的版本信息 # # # ==>>>应用场景：当程序拷贝到其他的电脑的时候，需要进行对电脑的运行环境进行获取， # # # 以保证程序在其他的操作系统环境下能够正常的运行 # ------------------------------------------------------------ # ------------------------------------------------------------ # # 4、sys.maxint # # # 最大的Int值 (python 2 中才有这个模块) # ------------------------------------------------------------ # ------------------------------------------------------------ # # 5、sys.path # # # 返回模块的搜索路径，初始化时使用PYTHONPATH环境变量的值 # ------------------------------------------------------------ # ------------------------------------------------------------ # # 6、sys.platform # # # 返回操作系统平台名称 # # # ==>>>应用场景：当程序拷贝到其他的电脑的时候，需要进行对电脑的运行环境进行获取， # # # 以保证程序在其他的操作系统环境下能够正常的运行 # ------------------------------------------------------------ # ------------------------------------------------------------ # # 7、sys实例：进度条 # ------------------------------------------------------------
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'''
# ------------------------------------------------------------
# # 1、sys.argv
# # # 命令行参数List，第一个元素是程序本身路径
# # # Python中 sys.argv[]的用法简明解释 - CSDN博客
# # # https://blog.csdn.net/xu380393916/article/details/81486773
# ------------------------------------------------------------
'''
#
# import sys
# print(sys.argv)
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # ['D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py']
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 2、sys.exit(n) 退出程序，正常退出时exit(0)
# # # 退出程序，正常退出时exit(0)
# ------------------------------------------------------------
'''
#
# import sys
# msg ='''
# 1：输入
# 2：退出
# '''
# dic = {
# "d_get":"1",
# "d_exit":"2"
# }
# while True:
# print(msg)
# usr_input = input("请输入选项：")
# if usr_input == dic["d_get"]:
# continue
# elif usr_input == dic["d_exit"]:
# sys.exit(0)
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# #
# # 1：输入
# # 2：退出
# #
# # 请输入选项：1
# #
# # 1：输入
# # 2：退出
# #
# # 请输入选项：1
# #
# # 1：输入
# # 2：退出
# #
# # 请输入选项：2
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 3、sys.version
# # # 获取Python解释程序的版本信息
# # # ==>>>应用场景：当程序拷贝到其他的电脑的时候，需要进行对电脑的运行环境进行获取，
# # # 以保证程序在其他的操作系统环境下能够正常的运行
# ------------------------------------------------------------
'''
#
# import sys
# print(sys.version)
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # 3.6.5 |Anaconda, Inc.| (default, Mar 29 2018, 13:32:41) [MSC v.1900 64 bit (AMD64)]
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 4、sys.maxint
# # # 最大的Int值 (python 2 中才有这个模块)
# ------------------------------------------------------------
'''
# 以下的环境是在python2.7中运运行的
# import sys
# print(sys.maxint)
#
# # D:\C_cache\py\day18_WenJianChuLi\venv\Scripts\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # 2147483647
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 5、sys.path
# # # 返回模块的搜索路径，初始化时使用PYTHONPATH环境变量的值
# ------------------------------------------------------------
'''
#
# import sys
# print(sys.path)
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # ['D:\\C_cache\\py\\day22_os_json_re_etc_MoKuai', 'D:\\C_cache\\py\\day22_os_json_re_etc_MoKuai', 'D:\\Anaconda3\\python36.zip', 'D:\\Anaconda3\\DLLs', 'D:\\Anaconda3\\lib', 'D:\\Anaconda3', 'D:\\Anaconda3\\lib\\site-packages', 'D:\\Anaconda3\\lib\\site-packages\\win32', 'D:\\Anaconda3\\lib\\site-packages\\win32\\lib', 'D:\\Anaconda3\\lib\\site-packages\\Pythonwin', 'D:\\Program Files (x86)\\PyCharm 2018.1.3\\helpers\\pycharm_matplotlib_backend']
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 6、sys.platform
# # # 返回操作系统平台名称
# # # ==>>>应用场景：当程序拷贝到其他的电脑的时候，需要进行对电脑的运行环境进行获取，
# # # 以保证程序在其他的操作系统环境下能够正常的运行
# ------------------------------------------------------------
'''
#
# import sys
# print(sys.platform)
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # win32
# #
# # Process finished with exit code 0
'''
# ------------------------------------------------------------
# # 7、sys实例：进度条
# ------------------------------------------------------------
'''
# # 方式一：
# import sys,time
# i = 0
# while i<100:
# sys.stdout.write(">")
# sys.stdout.flush()
# i +=1
# time.sleep(0.02)
# print("\n完成传输！")
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
# # 完成传输！
# #
# # Process finished with exit code 0
# # 方式二：
# import sys,time
# for i in range(100):
# sys.stdout.write(">")
# sys.stdout.flush()
# time.sleep(0.02)
# print("\n完成传输！")
#
# # D:\Anaconda3\python.exe D:/C_cache/py/day22_os_json_re_etc_MoKuai/day22_2_os_json_re_etc_MoKuai.py
# # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
# # 完成传输！
# #
# # Process finished with exit code 0