1.下载安装包

yum install wget -y
wget https://golang.google.cn/dl/go1.15.6.linux-amd64.tar.gz

2.解压

tar zxf go1.15.6.linux-amd64.tar.gz -C /usr/local/

3.添加环境变量

vim /etc/profile
vim /etc/bashrc
最后一行添加:
export PATH=$PATH:/usr/local/go/bin

4.使环境变量生效

source /etc/profile
source /etc/bashrc

5.ok啦~

go version      
go version go1.15.6 linux/amd64