Display Wordpress Category

I want to display only the those parent category name and with their child category..

Example category AAAAA,BBBB,CCCCC,DDDDD Parent category AAAAA having child category a,b,c Parent category BBBB having child category x,y,z

Now I wan开发者_StackOverflow社区t to display only (Result required)

AAAAA    
    a,b,c 
BBBB    
    x,y,z

Please help me...

If CCCCC's id is 17 and DDDDD id is 38, then the following example would work.

   <ul>
      <?php wp_list_pages('exclude=17,38' ); ?>
    </ul>