centos安装go语言步骤及示例

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cd /home/soft
wget https://studygolang.com/dl/golang/go1.15.7.linux-amd64.tar.gz
tar -xvf go1.15.7.linux-amd64.tar.gz  解压
mv /home/soft/go /usr/local/go  

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[root@localhost soft]# cd /usr/local/go
[root@localhost go]# ll
total 216
drwxr-xr-x.  2 root root  4096 Jan 20 04:04 api
-rw-r--r--.  1 root root 55669 Jan 20 04:01 AUTHORS
drwxr-xr-x.  2 root root    29 Jan 20 04:11 bin
-rw-r--r--.  1 root root  1339 Jan 20 04:01 CONTRIBUTING.md
-rw-r--r--.  1 root root 95475 Jan 20 04:01 CONTRIBUTORS
drwxr-xr-x.  7 root root  4096 Jan 20 04:04 doc
-rw-r--r--.  1 root root  5686 Jan 20 04:01 favicon.ico
drwxr-xr-x.  3 root root    18 Jan 20 04:04 lib
-rw-r--r--.  1 root root  1479 Jan 20 04:01 LICENSE
drwxr-xr-x. 12 root root   165 Jan 20 04:04 misc
-rw-r--r--.  1 root root  1303 Jan 20 04:01 PATENTS
drwxr-xr-x.  6 root root    76 Jan 20 04:12 pkg
-rw-r--r--.  1 root root  1607 Jan 20 04:01 README.md
-rw-r--r--.  1 root root    26 Jan 20 04:01 robots.txt
-rw-r--r--.  1 root root   397 Jan 20 04:01 SECURITY.md
drwxr-xr-x. 47 root root  4096 Jan 20 04:09 src
drwxr-xr-x. 23 root root 12288 Jan 20 04:09 test
-rw-r--r--.  1 root root     8 Jan 20 04:09 VERSION
[root@localhost go]# 

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vim /etc/profile



export GOPATH=/home/wfs/server   #代码路径，新编写的项目代码所在目录
export GOROOT=/usr/local/go   #安装路径
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin



source /etc/profile     #让环境变量生效

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[root@localhost server]# pwd
/home/wfs/server
[root@localhost server]# ll
total 20
-rwxr-xr-x. 1 root root  219 Feb  1 15:58 build_lite.sh
-rw-r--r--. 1 root root   83 Feb  1 16:32 main.go
-rw-r--r--. 1 root root 5508 Feb  1 15:58 wfs_server_lite.go
-rw-r--r--. 1 root root 1349 Feb  1 15:58 wfs_websockets_hub.go
[root@localhost server]# 

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package main

import "fmt"

func main() {
    fmt.Println("Hello, World!")
}

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[root@localhost server]# go run ./main.go 
Hello, World!
[root@localhost server]#