How to set path environment variable

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Method to set the path environment variable: 1. Windows system, open "System Properties", click the "Properties" option, click "Advanced System Settings", in the "System Properties" window, select the "Advanced" tab, and then click "Environment Variables" " button, find and click "Path" to edit and save; 2. For Linux systems, open the terminal, open your bash configuration file, add "export PATH=$PATH: file path" at the end of the file and save it; 3. For MacOS system, the operation is the same as above.