Window: Configure temporary environment variables and window environment variables

Window: Configure temporary environment variables and window environment variables

Background:

Use computer A to develop java programs OR run java programs. However, jdk or jre is not installed on computer A, and system A cannot be contaminated.

Solution: in windows, you can use the set command to configure temporary environment variables.Note: temporary environment variables are only valid for the current window.

The following uses the path environment variable as an example:

① Check the environment variable: set path

② Modify the environment variable: set path = xxxx

When setting environment variables, if you want to add them to the original environment variables, you can use % path % to reference the original environment variables:

③ Clear: set paht = (it is useless, and there is no need to clear environment variables ....)

Note: The naming conventions supported by Pathare red boxes, such as supporting the .exe command.