随笔分类 - 4-python / 3-python--模块
re / hashlib / Yaml / xml /os /random/time/os/sys
摘要：一．模块 sys.path sys.argv 2. os import os #cmd_res = os.system("dir") #只执行命令，不保存结果 cmd_res = os.popen("dir").read() print(" >",cmd_res) os.mkdir("new_dir
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