perl: warning: Setting locale failed.

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
??????? LANGUAGE = (unset),
??????? LC_ALL = (unset),
??????? LANG = "zh_CN.ZHS16GBK"
??? are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Can't locate warning.pm in @INC (@INC contains: /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at ./perl_tac line 2.
BEGIN failed--compilation aborted at ./perl_tac line 2.

以上问题分为两部分 （1）perl: warning: Falling back to the standard locale ("C"). 到这一句?为分界线，这个问题的解决方式
????????????????????????????????? 因为我是在普通用户下运行的? 直接改当前用户的环境变量就可以?vi.bash_profile??在最后输入 export LC_ALL=C

或者

?? vi /root/.bashrc
再最底部加上
? ?export LC_ALL=C
或者直接运行
? ?echo "export LC_ALL=C" >> /root/.bashrc
然后执行一下：
? ?source /root/.bashrc?

????????????????????????????? (2)? can't locate warning.pm in @INC? 不能定位warning 模块?? ??????????????????????????????? 如何查看perl?安装过的模块 ?find `perl -e 'print "@INC"'` -name "*.pm" ?????????????????????????????? 后来发现 是use warnings?这忘记写s 了??