设置环境变量 

创建目录下的go文件夹： mkdir ~/go

下面的东西放到.bash_rc(也可能是.bash_profile或者.zshrc)
export GOROOT=/usr/local/go 
export GOPATH=$HOME/go
export PATH=$PATH:$GOROOT/bin

source ~/.bash_profile

 go env
 go version

运行结果：
liuxinmingdeMacBook-Pro:gotest liuxinming$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/liuxinming/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common"
CXX="clang++"
CGO_ENABLED="1"
===========华丽分割线===============
liuxinmingdeMacBook-Pro:gotest liuxinming$ go version
go version go1.4 darwin/amd64
liuxinmingdeMacBook-Pro:gotest liuxinming$

开发工具配置(Sublime Text 2)

package main

import "fmt"

func main() {
    fmt.Printf("hello, world\n")
}

为Sublime Text2添加Go语言的Build

{  
     "cmd" : [ "/usr/local/go/bin/go" ,  "run" ,  "$file" ],  
     "file_regex" :  "^(...*?):([0-9]*):?([0-9]*)" ,  
     "working_dir" :  "${file_path}" ,  
     "selector" :  "source.go"   
}