安装Homebrew
在Homebrew复制安装命令，在控制台运行完成安装
安装golnag
$ brew update && brew upgrade
$ brew install go
PATH配置
创建一个目录作为gopath,在目录创建三个目录bin、src、pkg
$ cd ~
$ vim .bash_profile
编辑.bash_profile文件并保存，文件内容如下
export GOROOT=/usr/local/opt/go/libexec
# GOPAT为上面创建的目录路径
export GOPATH=/Users/deweixu/coding/Go/go_path
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
运行source .bash_profile使配置的PATH生效。
安装完成
运行go env查看安装效果：
$ go env
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/deweixu/coding/Go/go_path"
GORACE=""
GOROOT="/usr/local/opt/go/libexec"
GOTOOLDIR="/usr/local/opt/go/libexec/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/q3/kxp92gk548z_y9pc1n3qsztw0000gn/T/go-build078494854=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
enjoy golang