- 获取当前的工作目录
import os
print(os.getcwd())
# 运行结果 /Users/jingxing/PycharmProjects/python全栈/day20/代码
- 切换工作目录
import os
print(os.chdir('/Users/jingxing/PycharmProjects/python全栈'))
print(os.getcwd())
# 运行结果 /Users/jingxing/PycharmProjects/python全栈
- 获取当前目录
import os
print(os.curdir)
# 运行结果 .
- 获取上级目录
import os
print(os.pardir)
# 运行结果 ..
- 获取系统的环境变量
import os
print(os.environ)
# environ({'PATH': '/Users/jingxing/.nvm/versions/node/v4.9.1/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/python_study/mongodb/bin://Volumes/python_study/mongodb/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/VMware Fusion.app/Contents/Public:/python_study/Applications/mongodb-osx-x86_64-3.6.3/bin::/usr/local/mysql/bin','COMMAND_MODE': 'unix2003','VERSIONER_PYTHON_VERSION': '2.7','LS_OPTIONS': '--color=auto','LOGNAME': 'jingxing','XPC_SERVICE_NAME': 'com.apple.xpc.launchd.oneshot.0x10000004.pycharm','PWD': '/Users/jingxing/PycharmProjects/python全栈/day20/代码','PYCHARM_HOSTED': '1','NODE_PATH': '/Users/jingxing/.nvm/versions/node/v4.9.1/lib/node_modules','PYCHARM_MATPLOTLIB_PORT': '49379','PYTHONPATH': '/Applications/PyCharm.app/Contents/helpers/pycharm_matplotlib_backend:/Users/jingxing/PycharmProjects/python全栈','NVM_CD_FLAGS': '','NVM_DIR': '/Users/jingxing/.nvm','SHELL': '/bin/bash','LSCOLORS': 'CxfxcxdxbxegedabagGxGx','PYTHONIOENCODING': 'UTF-8','SECURITYSESSIONID': '186a7','VERSIONER_PYTHON_PREFER_32_BIT': 'no','USER': 'jingxing','CLICOLOR': 'Yes','TMPDIR': '/var/folders/yl/3drd7wf93f90sfkgpc2zg9cr0000gn/T/','SSH_AUTH_SOCK': '/private/tmp/com.apple.launchd.bIB1b2eyOD/Listeners','XPC_FLAGS': '0x0','PYTHONUNBUFFERED': '1','__CF_USER_TEXT_ENCODING': '0x1F5:0x19:0x34','Apple_PubSub_Socket_Render': '/private/tmp/com.apple.launchd.bHuC64fYdd/Render','LC_CTYPE': 'zh_CN.UTF-8','NVM_BIN': '/Users/jingxing/.nvm/versions/node/v4.9.1/bin','HOME': '/Users/jingxing','__PYVENV_LAUNCHER__': '/Library/Frameworks/Python.framework/Versions/3.6/bin/python3'})
- 创建多级目录
import os
os.makedirs('a/b/c')
# 会在当前文件路径创建多级目录
- 创建一个目录
import os
os.mkdir('aa')
# 能且仅能创建一个目录
- 递归删除
import os
os.removedirs('a/b/c')
# 递归删除,只能删除空目录
- 删除一个目录
import os
os.rmdir('aa')
# 删除一个目录
- 删除文件
import os
os.remove(r'/Users/jingxing/PycharmProjects/python全栈')
# 删除文件
- 列出当前目录所有的文件及文件夹
import os
print(os.listdir(r'/Users/jingxing/PycharmProjects/python全栈'))
- 获取当前平台路径分隔符
import os
print(os.seq)
# 运行结果 /
- 获取当前平台换行符
import os
print(os.lineseq,end='')