如何在codeigniter网址中隐藏ID？

Question

我想在http://localhost/mysite/index.php/main/show_details/TABCGSHS0001

等codeigniter中隐藏ID

我只想隐藏＆＃39; TABCGSHS0001＆＃39; 只显示http://localhost/mysite/index.php/main/show_details/