1,下载
Golang官网下载地址：https://golang.google.cn/dl/
2,解压到指定目录
3,运行go
获取环境变量修改方法
go help env usage: go env [-json] [-u] [-w] [var ...] Env prints Go environment information. By default env prints information as a shell script (on Windows, a batch file). If one or more variable names is given as arguments, env prints the value of each named variable on its own line. The -json flag prints the environment in JSON format instead of as a shell script. The -u flag requires one or more arguments and unsets the default setting for the named environment variables, if one has been set with ‘go env -w‘. The -w flag requires one or more arguments of the form NAME=VALUE and changes the default settings of the named environment variables to the given values. For more about environment variables, see ‘go help environment‘.
windows现在环境变量
C:\Users\Administrator>go env set GO111MODULE=on set GOARCH=amd64 set GOBIN= set GOCACHE=C:\Users\Administrator\AppData\Local\go-build set GOENV=C:\Users\Administrator\AppData\Roaming\go\env set GOEXE=.exe set GOFLAGS= set GOHOSTARCH=amd64 set GOHOSTOS=windows set GOINSECURE= set GONOPROXY= set GONOSUMDB= set GOOS=windows set GOPATH=C:\Go\networkpkg; set GOPRIVATE= set GOPROXY=https://goproxy.io,direct set GOROOT=c:\go set GOSUMDB=sum.golang.org set GOTMPDIR= set GOTOOLDIR=c:\go\pkg\tool\windows_amd64 set GCCGO=gccgo set AR=ar set CC=gcc set CXX=g++ set CGO_ENABLED=1 set GOMOD=NUL set CGO_CFLAGS=-g -O2 set CGO_CPPFLAGS= set CGO_CXXFLAGS=-g -O2 set CGO_FFLAGS=-g -O2 set CGO_LDFLAGS=-g -O2 set PKG_CONFIG=pkg-config set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\ADMINI~1\AppData\Local\Temp\go-build644129466=/tmp/go-build -gno-record-gcc-switches C:\Users\Administrator>
linux 现在环境变量
root@ubuntu:~# go env GO111MODULE="on" GOARCH="amd64" GOBIN="" GOCACHE="/root/.cache/go-build" GOENV="/root/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/root/go" GOPRIVATE="" GOPROXY="https://goproxy.cn/" GOROOT="/home/goenv/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/home/goenv/go/pkg/tool/linux_amd64" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/dev/null" 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-build869956040=/tmp/go-build -gno-record-gcc-switches" root@ubuntu:~#
设置/etc/profile环境变量
设置GOPATH环境变量 修改/etc/profile系统环境变量文件，写入GOPATH信息以及go sdk路径 #for go env export GOROOT=/home/goenv/go export PATH=$PATH:$GOROOT/bin 读取/etc/profile，立即生效 source /etc/profile #读取环境变量
修改方法
go env -w GOPROXY=https://goproxy.cn/
go env -w GO111MODULE=on
想在linux 同时设置 x64,x86的环境失败了.
GOCACHE="/root/.cache/go-build" GOENV="/root/.config/go/env"
GOROOT="/home/goenv/go"
会同时修改.只有用2台机器来配置环境变量
原文：https://www.cnblogs.com/bleachli/p/14812698.html