1、安装gcc套装：
yum install cpp
yum install binutils
yum install glibc
yum install glibc-kernheaders
yum install glibc-common
yum install glibc-devel
yum install gcc
yum install make
2、升级gcc
yum -y install centos-release-scl
yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils
scl enable devtoolset-9 bash
3、设置永久升级：
echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile
4、安装redis：
wget http://download.redis.io/releases/redis-6.0.3.tar.gz
tar xzf redis-6.0.3.tar.gz
cd redis-6.0.3
make
5、启动服务：
src/redis-server
6、客户端测试：
src/redis-cli
redis> set foo bar
OK
redis> get foo
"bar"