mac下搭建go环境，以及使用IDE

1，安装

brew install go

2，设置环境变量：

GOPATH 是运行程序的目录 
GOROOT 是安装目录，

export GOPATH=/Users/songfei/sdk/go 
export GOBIN=$GOPATH/bin 
export PATH=$PATH:$GOBIN

3，

$~go env 
GOARCH=”amd64” 
GOBIN=”/Users/songfei/sdk/go/bin” 
GOEXE=”” 
GOHOSTARCH=”amd64” 
GOHOSTOS=”darwin” 
GOOS=”darwin” 
GOPATH=”/Users/songfei/sdk/go” 
GORACE=”” 
GOROOT=”/usr/local/Cellar/go/1.5.2/libexec” 
GOTOOLDIR=”/usr/local/Cellar/go/1.5.2/libexec/pkg/tool/darwin_amd64”
GO15VENDOREXPERIMENT=”” 
CC=”clang” 
GOGCCFLAGS=”-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common” 
CXX=”clang++” 
CGO_ENABLED=”1”

hello.go

package main

import "fmt"

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

4, 编译成可执行文件

go build hello.go

5，下载 IDE

IDE 下载

点击查看》编辑环境变量

# native compiler drawin amd64

GOROOT=/usr/local/Cellar/go/1.5.2/libexec
GOBIN=/Users/songfei/sdk/go/bin
GOARCH=amd64
GOOS=darwin
CGO_ENABLED=1
PATH=$PATH:$GOBIN

GO15VENDOREXPERIMENT=1

PATH=$GOROOT/bin:$PATH

LITEIDE_GDB=/usr/local/bin/gdb
LITEIDE_MAKE=make
LITEIDE_TERM=/usr/bin/open
LITEIDE_TERMARGS=-a Terminal
LITEIDE_EXEC=/usr/X11R6/bin/xterm
LITEIDE_EXECOPT=-e

如果运行过程中报错:

GolangDoc: Could not find godoc, (hint: is godoc installed?)

解决办法：

翻墙 
go get -v -u golang.org/x/tools/cmd/godoc

不翻墙 
git clone https://github.com/golang/tools $GOPATH/src/golang.org/x/tools