具体到GOROOT, Go 1.9会自动将其设置到其安装路径。 即使你安装了多个Go，调用1.9。xone将GOROOT设置为/path/到/go/1.9(之前，如果没有设置，它假设默认路径为/usr/local/go或c:\ go)。

参见CL Go Review 53370:

The go tool will now use the path from which it was invoked to attempt to locate the root of the Go install tree. This means that if the entire Go installation is moved to a new location, the go tool should continue to work as usual. This may be overriden by setting GOROOT in the environment, which should only be done in unusual circumstances. Note that this does not affect the result of the runtime.GOROOT() function, which will continue to report the original installation location; this may be fixed in later releases.

我不得不追加

export GOROOT=/usr/local/Cellar/go/1.10.1/libexec

致我的~/。在Mac OS X上使用bash_profile

GOPATH不应该指向Go安装，而是指向您的工作空间(参见https://golang.org/doc/code.html#GOPATH)。当你使用go get或go install安装某个包时，它会落在GOPATH中。这就是为什么它警告你，你绝对不希望从互联网随机包被转储到你的正式安装。

第一次运行go env。 如果你看到go没有安装，你可以通过homebrew或包和/或其他方式安装它。 如果您看到输出，那么您的Go已经安装。 它向你展示了所有已设置和未设置的env。

如果你看到GOROOT为空:

在我的电脑上:/usr/local/go/bin/go 然后export GOROOT=/usr/local/go

如果你看到GOPATH为空:

在计算机的任何位置为go项目创建任意目录，在我的例子中是:~/GO_PROJECTS 然后导出GOPATH=~/GO_PROJECTS

如上所述:

GOPATH环境变量指定您的 工作区。

对于Windows，这对我来说是有效的(在Ms-dos窗口中):

set GOPATH=D:\my_folder_for_go_code\

这将创建一个Ms-dos识别的GOPATH变量，使用如下:

cd %GOPATH%

具体到GOROOT, Go 1.9会自动将其设置到其安装路径。 即使你安装了多个Go，调用1.9。xone将GOROOT设置为/path/到/go/1.9(之前，如果没有设置，它假设默认路径为/usr/local/go或c:\ go)。

参见CL Go Review 53370:

The go tool will now use the path from which it was invoked to attempt to locate the root of the Go install tree. This means that if the entire Go installation is moved to a new location, the go tool should continue to work as usual. This may be overriden by setting GOROOT in the environment, which should only be done in unusual circumstances. Note that this does not affect the result of the runtime.GOROOT() function, which will continue to report the original installation location; this may be fixed in later releases.