怎么重装apache和数据库啊

service httpd stop
service mysqld stop
mv /usr/local/apache{,_bk}
mv /usr/local/mysql{,_bk}
mv /usr/local/php{,_bk}  #PHP模块libphp5.so在apache modules目录下，所以也需要重新安装下php
./install.sh
apache、mysql、php选择安装即可