出现can't locate
Can't locate ./environment.pl in @INC (@INC contains: /usr/rcpark/pub/perl5/lib/sun4-solaris/5.00404 /usr/rcpark/pub/perl5/lib /usr/rcpark/pub/perl5/lib/site_perl/sun4-solaris /usr/rcpark/pub/perl5/lib/site_perl .) at /opt/public_html/cgi-bin/common.pl line 17.
请问为什么会出现以上错误?
附:文件common.pl的第17行是:
require './environment.pl';
require './environment.pl';、require "./environment.pl";、require 'environment.pl'、require '/opt/public_html/cgi-bin/environment.pl';有区别么?或者是其它错误?谢谢。
另外:在perl中如果一个a.pl require 了environment.pl文件,b.cgi同时require了a.pl和environment.pl是否有错?就像C语言里类似重复包含头文件会报错那样.