Shortcut configuration for Windows command-line environment variables

The following figure:

Now we're going to configure it in a much quicker way with the command line. The Windows command-line command set is used to view and set environment variables for the command-line environment.

1) View all environment variables

Set

2) View the environment variables for the specified name, such as View Classpath

Set Propertiesname

If the specified name does not exist, an error is given.

And when viewing, you can also match the view.

3) Modify Environment variables

Set Propertiesname = Value

4) Create a Heart environment variable

Set Newpropertiesname = Value

This environment variable is created when the environment variable does not exist.

5) Empty Environment variables

Set propertiesname =, where nothing is written, the environment variable is deleted, not null Oh, if you want to configure NULL, set Properties = ""