测试代码：
= ('article_list.html', '.html' '
' = ('article_index.html', '.html' '
' = ('articleABCT.html', '.html' '
'?>
显示结果：
article_index
articleABCT
WINNT Apache/2.2.16 (Win32) PHP/5.2.14(本地PHPnow 1.5.6-1)
Linux Apache 2.0 PHP/5.2.17p1(wdcp_v2.5.7)
Linux LiteSpeed PHP/5.2.17(梦游主机)
Linux Apache 2.0 PHP/5.2.17(主机无忧)
PHP rtrim函数bug
