use Digest::SHA512;这个怎么报错啊

spirit_12

想用sha512加密。在头引用use Digest::SHA512；或者use Digest::SHA；都报错，如下

1. Can't locate Digest/SHA.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8 .) at test.pm line 5.

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请问怎么解决呢，是不是缺什么包呢

1. [root@example tools]# perl -v
   
2. 
   
3. This is perl, v5.8.8 built for i386-linux-thread-multi
   
4. 
   
5. Copyright 1987-2006, Larry Wall
   
6. 
   
7. Perl may be copied only under the terms of either the Artistic License or the
   
8. GNU General Public License, which may be found in the Perl 5 source kit.
   
9. 
   
10. Complete documentation for Perl, including FAQ lists, should be found on
    
11. this system using "man perl" or "perldoc perl".  If you have access to the
    
12. Internet, point your browser at http://www.perl.org/, the Perl Home Page.

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climby

提示就是缺包Digest::SHA