1、index.php

require( dirname( __FILE__ ) . '/wp-blog-header.php' );

2、wp-blog-header.php

require_once( dirname(__FILE__) . '/wp-load.php' );

wp();

require_once( ABSPATH . WPINC . '/template-loader.php' );

3、template-loader.php

4、wp-load.php

require_once( dirname(__FILE__) . '/wp-config.php' );

5、wp-includes/load.php

6、wp-includes/default-constants.php

7、wp-includes/functions.php