thanks for your reply,but I think that is not the reason.I modified the directory to absolute directory.And the error is same.

$ more config
#!/usr/bin/perl
use lib '/data/zht/perl/lib';
use Config::General;

print "Content-type: text/html\n\n";
print "ok";

$ ls /data/zht/perl/lib
Cisco         Config        Sharefunc.pm
$ ls /data/zht/perl/lib/Config
General     General.pm
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