1. Common Operation
cls # clear screen
set # viewing environment variable
cd # handover working directory (disc changer: Direct Input C: :) or D
CD .. # return to parent directory
exit # cmd Close Window
2. about Python
pip install the package name HTTP -i: // pypi.douban.com/simple --trusted-Host pypi.douban.com
# install python package, several image URL:
Ali cloud http://mirrors.aliyun.com/pypi/simple/
China University of Science and Technology https://pypi.mirrors.ustc.edu.cn/simple/
Watercress (douban) http://pypi.douban.com/simple/
Tsinghua University https://pypi.tuna.tsinghua.edu.cn/simple/
University of Science and Technology of China http://pypi.mirrors.ustc.edu.cn/simple/
Open python python # (if installed simultaneously. 2 and 3, may be modified in the Python installation is python2.exe to distinguish python.exe)
Exit () or quit () or Ctrl + z + Enter key # key to exit the program python (when you run python in cmd)
3. Information Network
ipconfig # Check the machine current ip address
ping URL # see if I can at this URL
4. Open the common tools
calc # calculator
notepad # Notepad
write # WordPad
explorer # Explorer
regedit # Registry Editor
The time off
-s the shutdown - T # seconds after the shutdown of the number of seconds the shutdown -R & lt - T seconds # restarted after a set number of seconds the shutdown -a # undo shutdown / restart command