1env GO111MODULE=on 2 3go get rsc.io/fortune 4go list -f '{{.Target}}' rsc.io/fortune 5! stdout fortune@v1 6stdout 'fortune(\.exe)?$' 7 8go get rsc.io/fortune/v2 9go list -f '{{.Target}}' rsc.io/fortune/v2 10! stdout v2 11stdout 'fortune(\.exe)?$' 12 13-- go.mod -- 14module m