[PerlChina] 请教一个散列表的使用

潘建锋 panjianfeng1979 at gmail.com
Fri Aug 4 02:07:26 PDT 2006


my %levelMap = (
    'PS_INDETERMINATE' => 9,
    'PS_CRITICAL'      => 1,
    'PS_MAJOR'         => 2,
    'PS_MINOR'         => 3,
    'PS_WARNING'       => 4
);
$1 = 'PS_MINOR';
但是下面的语句老是报错
print $levelMap{$1};
提示Use of uninitialized value in print ....
请问是怎么回事?谢谢!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.pm.org/pipermail/china-pm/attachments/20060804/4b02a234/attachment.html 


More information about the China-pm mailing list