Go 语言环境安装

• 下载安装包 https://golang.google.cn/dl/
• CentOS安装为例:

1、下载源码包:go1.4.linux-amd64.tar.gz。
2、将下载的源码包解压至 /usr/local目录。
tar -C /usr/local -xzf go1.4.linux-amd64.tar.gz
3、配置GOPATH、GOROOT环境变量:
vi /etc/profile添加以下几行在文件末尾
export GOROOT=/usr/local/go
export GOPATH=/home/www/go
export PATH=$PATH:$GOROOT/bin
保存退出
source /etc/profile立即生效

• 这个时候输入以下命令就能看到安装配置完成

[root@10-23-67-69 bin]# go version
go version go1.11 linux/amd64
[root@10-23-67-69 bin]# go help
Go is a tool for managing Go source code.
Usage:
 go <command> [arguments]
The commands are:
 bug start a bug report
 build compile packages and dependencies
 clean remove object files and cached files
 doc show documentation for package or symbol
 env print Go environment information
 fix update packages to use new APIs
 fmt gofmt (reformat) package sources
 generate generate Go files by processing source
 get download and install packages and dependencies
 install compile and install packages and dependencies
 list list packages or modules
 mod module maintenance
 run compile and run Go program
 test test packages
 tool run specified go tool
 version print Go version
 vet report likely mistakes in packages
Use "go help <command>" for more information about a command.
Additional help topics:
 buildmode build modes
 c calling between Go and C
 cache build and test caching
 environment environment variables
 filetype file types
 go.mod the go.mod file
 gopath GOPATH environment variable
 gopath-get legacy GOPATH go get
 goproxy module proxy protocol
 importpath import path syntax
 modules modules, module versions, and more
 module-get module-aware go get
 packages package lists and patterns
 testflag testing flags
 testfunc testing functions

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