①gopath系统环境变量，在~/.bash_profile文件中添加：
这个设置以后，系统默认的go环境就指定好了，如果不重新指定，则默认识别的都是这里设置的（包括代码提示引用的路径、三方包go get安装的路径）。常用于统一存放第三方包和安装的bin插件。
GOPATH=”/Users/lee/Documents/global”
export GOPATH
export PATH=$GOPATH:$PATH
export PATH=$GOPATH/bin:$PATH
②vscode>“用户设置”，第三方包依赖的插件路径
由于vscode支持为每个项目单独设置环境：“工作区设置”。为了避免每个工作区重复下载依赖的插件，可以手动指定插件统一依赖于系统环境指定的GOPATH（我们安装的包默认也是放在这里的），参考①。
“go.toolsGopath”:”/Users/lee/Documents/global”
③vscode>打开项目的“工作区设置”，为每个项目设置单独的gopath：
“go.gopath”: “/Users/shuai/Documents/project_a”
④安装vscode的插件。
go get -u -v github.com/nsf/gocode
go get -u -v github.com/rogpeppe/godef
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/golang/lint/golint
go get -u -v github.com/lukehoban/go-outline
https_proxy=http://127.0.0.1:1087 go get -u -v sourcegraph.com/sqs/goreturns
https_proxy=http://127.0.0.1:1087 go get -u -v golang.org/x/tools/cmd/gorename
go get -u -v github.com/uudashr/gopkgs/cmd/gopkgs
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/newhook/go-symbols
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/cweill/gotests/…
https_proxy=http://127.0.0.1:1087 go get -u -v golang.org/x/tools/cmd/guru
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/go-swagger/go-swagger/cmd/swagger
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/micro/micro
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/micro/kubernetes/cmd/micro
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/jinzhu/gorm
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/golang/protobuf/{proto,protoc-gen-go}
https_proxy=http://127.0.0.1:1087 go get -u -v google.golang.org/grpc
https_proxy=http://127.0.0.1:1087 go get -u -v github.com/micro/protoc-gen-micro
//如果需要在vscode中调试go程序，需要下载安装dlv
go get -u -v github.com/derekparker/delve/cmd/dlv
报错
could not launch process: exec: “lldb-server”: executable file not found in $PATH
解决方法
xcode-select –install
报错
dlv could not launch process: EOF
解决方法
sudo rm -rf /Library/Developer/CommandLineTools
then go to page https://developer.apple.com/download/more/
download and install previous version
Command Line Tools (macOS 10.13) for Xcode 9.2 2018.4.8
launch.json
“program”: “${workspaceRoot}/src/test.go”,