go.mod file not found in current directory or any parent directory我第一次安装 Golang 时遇到错误。
但我正在研究<GOPATH>/src目录。难道只有当前工作目录位于 GOPATH 之外时才需要 go.mod 吗？
这里有详细的信息
去版本：go version go1.16.4 windows/amd64
去环境：
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\<userName>\AppData\Local\go-build
set GOENV=C:\Users\<userName>\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\<userName>\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\<userName>\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=C:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.16.4
set GCCGO=gccgo
set AR=ar …