Study Notes (01): 2019Python full set of video tutorials - variable

Learning immediately: https://edu.csdn.net/course/play/25505/304728?utm_source=blogtoedu

A .Dos command (cmd)

1.CD (change directory)

   CD .. (to the top-level directory)

   cd + the specified directory path

① (c: \ ...... // replace d: \ ......) cd + d \ ... Enter

② d: Enter

2. dir (directory browsing)

3. mkdir (new directory) make

4. rmdir (remove directory) remove

5. ipconfig (see the local IP address)

6. ping 192.168.0.1 (network connection between the two test machine)

Two. Pip Package Manager

1.pip install + package name (installation)

2.pip uninstall + package name (delete uninstall)

3.pip - V (view version)

4.pip freeze> requirement.txt (project depends packet delivered to the specified file)

5.pip install -r requirement.txt (installation package needed for the project) project to change the system operating environment

 

 

A. Type

1. string ( 'Hello'), integer (5,6,7,) float (3.65,4.50) bool type (true false) list (list) dictionary (dict) do not overlap list (set)

 

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