cd /etc/repos.d
sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

sudo wget http://mirrors.aliyun.com/repo/Centos-7.repo

sudo yum clean all
sudo yum update
sudo yum makecache

sudo yum install epel-release

sudo yum install gcc gcc-c++ cmake3 vim tree lrzsz bzip2 -y

sudo yum install boost boost-devel asio jsoncpp jsoncpp-devel leveldb leveldb-devel openssl openssl-devel asio-devel -y