SET CGO_ENABLED=0
SET GOOS=linux
SET GOARCH=amd64
echo now the CGO_ENABLED:
 go env CGO_ENABLED

echo now the GOOS:
 go env GOOS

echo now the GOARCH:
 go env GOARCH
go build -o worldEpcho main.go 

SET CGO_ENABLED=1
SET GOOS=windows
SET GOARCH=amd64


echo now the CGO_ENABLED:
 go env CGO_ENABLED

echo now the GOOS:
 go env GOOS

echo now the GOARCH:
 go env GOARCH