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"