来自
go help build:
When the command line specifies a single main package,build writes the resulting executable to output.Otherwise build compiles the packages but discards the results,serving only as a check that the packages can be built.

来自
go help build:
When the command line specifies a single main package,build writes the resulting executable to output.Otherwise build compiles the packages but discards the results,serving only as a check that the packages can be built.