摘要：
Perl内置操作符Perl的运算符有很多，但这里有几个最常见的：算术运算符 + addition - subtraction * multiplication / division数字比较运算符 == equality != inequality < less than > greater than <= less than or equal >= greater than or equal字符串比较运算符 eq equality ne inequality lt less th... 阅读全文
