go run main.go
go build -o main.exe main.go
set CGO_ENABLED=0
set GOOS=linux
set GOARCH=amd64
go build -o main.bin main.go
set CGO_ENABLED=0
set GOOS=darwin
set GOARCH=amd64
go build -o main.app main.go
set CGO_ENABLED=0
set GOOS=freebsd
set GOARCH=386
go build -o main.bsd main.go
GOOS=windows GOARCH=386 CGO_ENABLED=1 CXX=i686-w64-mingw32-g++ CC=i686-w64-mingw32-gcc go build -o main.exe main.go