Analysis of perl INC settings

1) The default INC is as follows:

Copy codeThe Code is as follows: @ INC:
C:/Perl/site/lib
C:/Perl/lib

2) set the environment variable PERL5LIB to add it to INC. For example:

Set perl5lib = c: \ perllibs

After perl5lib is set,

Copy codeThe Code is as follows: % ENV:
PERL5LIB = "c: \ perllibs"
@ INC:
C: \ perllibs
C:/Perl/site/lib
C:/Perl/lib

3) Modify INC in a perl program, for example:

Copy codeThe Code is as follows :#! /Usr/bin/perl-w
Push (@ INC, "/home/test ");
# Or
#! /Usr/bin/perl-w
BEGIN {push (@ INC, "/home/test ")};
# Or
#! /Usr/bin/perl-w
Use lib '/home/test ';