https://www.cnblogs.com/agostop/archive/2012/03/09/2387775.html
https://blog.csdn.net/weixin_30825581/article/details/98601867
https://www.ibm.com/developerworks/cn/linux/sdk/perl/l-p102/
perl 一行程序
原文：https://www.cnblogs.com/longchang/p/13084101.html
