go实现的雪花算法，centos7系统

go实现的雪花算法https://gitee.com/GuaikOrg/go-snowflake
centos7慢的办法，切换yum源：cat /etc/redhat-release，centos7使用：

//首先备份原版/etc/yum.repos.d/CentOS-Base.repo
cd /etc/yum.repos.d
sudo mv CentOS-Base.repo CentOS-Base.repo.bak

sudo wget -O CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache

1.go安装：

yum update
yum install go -y

2.配置go:

go version
go env