What's wrong with the invalidity of the python virtual environment?

the virtual environment is created by pycharm. After entering venv\ script\ activate.bat on the command line, the display enters the virtual environment, and (venv) appears. However, typing pip-V shows c:\ users\ yglin\ appdata\ local\ programs\ python\ python37\ lib\ site-packages\ pip (python 3.7)
does not mean that the virtual environment is invalid. Why?
Virtual environment is effective in pycharm

Oct.15,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3c1a0-34698.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3c1a0-34698.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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