go clean命令

usage:

$ go clean [-i] [-r] [-n] [-x] [build flags] [packages]
$ go help clean

-i flag:

remove the corresponding installed archive or binary (what 'go install' would create).

-n flag:

print the remove commands it would execute, but not run them

-r flag:

be applied recursively to all the dependencies of the packages named by the import paths.

-x flag:

print remove commands as it executes them

-cache flag:

remove the entire go build cache

-testcache flag:

expire all test results in the go build cache

-modcache flag:

remove the entire module download cache, including unpacked source code of versioned dependencies.