下载安装包

国外的

https://golang.org/dl/

国内的

https://studygolang.com/dl

安装

mac os

1. 直接点击go1.12.7.darwin-amd64.pkg ，进入图形界面安装。

2. 在~/.zshrc中，添加环境变量（如果是别的sh，请在别的sh中配置）

   #GOROOT
   export GOROOT=/usr/local/go/
   
   #GOPATH  go项目路径
   export GOPATH=$HOME/workspace/project
   
   #GOPATH bin
   export PATH=$PATH:$GOPATH/bin
   
   #GOPATH root bin
   export PATH=$PATH:$GOROOT/bin

3. source ~/.zshrc

4. 验证

   # go version
   go version go1.12.7 darwin/amd64
   # go env
   GOARCH="amd64"
   GOBIN=""
   GOCACHE="/Users/manshu/Library/Caches/go-build"
   GOEXE=""
   GOFLAGS=""
   GOHOSTARCH="amd64"
   GOHOSTOS="darwin"
   GOOS="darwin"
   GOPATH="/Users/manshu/workspace/project"
   GOPROXY="https://goproxy.io"
   GORACE=""
   GOROOT="/usr/local/go"
   GOTMPDIR=""
   GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
   GCCGO="gccgo"
   CC="clang"
   CXX="clang++"
   CGO_ENABLED="1"
   GOMOD=""
   CGO_CFLAGS="-g -O2"
   CGO_CPPFLAGS=""
   CGO_CXXFLAGS="-g -O2"
   CGO_FFLAGS="-g -O2"
   CGO_LDFLAGS="-g -O2"
   PKG_CONFIG="pkg-config"
   GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/wp/w879p9h15x983cgrs5cz25rc0000gn/T/go-build153405912=/tmp/go-build -gno-record-gcc-switches -fno-common"

linux

1. 解压 tar xzvf go1.12.7.linux-amd64.tar.gz -C /usr/lib/

2. 在~/.bashrc中，添加环境变量（如果是别的sh，请在别的sh中配置

   #GOROOT
   export GOROOT=/usr/lib/go
   
   #GOPATH go项目路径
   export GOPATH=/root/gocode
   
   #GOPATH bin
   export PATH=$PATH:$GOPATH/bin
   
   #GOPATH root bin
   export PATH=$PATH:$GOROOT/bin

3. source ~/.bashrc

4. 验证

   [root@compute84 bin]# go version
   go version go1.12.7 linux/amd64
   [root@compute84 bin]#
   [root@compute84 bin]# go env
   GOARCH="amd64"
   GOBIN=""
   GOCACHE="/root/.cache/go-build"
   GOEXE=""
   GOFLAGS=""
   GOHOSTARCH="amd64"
   GOHOSTOS="linux"
   GOOS="linux"
   GOPATH="/root/gocode"
   GOPROXY="https://goproxy.io"
   GORACE=""
   GOROOT="/usr/lib/go"
   GOTMPDIR=""
   GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
   GCCGO="gccgo"
   CC="gcc"
   CXX="g++"
   CGO_ENABLED="1"
   GOMOD=""
   CGO_CFLAGS="-g -O2"
   CGO_CPPFLAGS=""
   CGO_CXXFLAGS="-g -O2"
   CGO_FFLAGS="-g -O2"
   CGO_LDFLAGS="-g -O2"
   PKG_CONFIG="pkg-config"
   GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build670179021=/tmp/go-build -gno-record-gcc-switches"