My English is poor, thank you for your patience!
I compiled apache httpd server and installed normally. It can work correctly. The configuration file is /usr/local/apache2/conf/httpd.conf. But we known that install apache on ubuntu use: apt-get install apache2, will have the main configuration file in /etc/apache2/apache2.conf and other separate configuration files.
My question is how to compile apache httpd server from source code and generate the configuration files structure same with apache2.conf not the httpd.conf?