如何比较Perl中的两个字符串？

如何比较Perl中的两个字符串？

我正在学习Perl，我有这个基本的问题在StackOverflow上找到这里，发现没有好的答案，所以我想我会问。

解决方法

参见 perldoc perlop.使用lt，gt，eq，ne和cmp适用于字符串比较：

Binary eq returns true if the left argument is stringwise equal to the right argument.

Binary ne returns true if the left argument is stringwise not equal to the right argument.

Binary cmp returns -1,or 1 depending on whether the left argument is stringwise less than,equal to,or greater than the right argument.

Binary ~~ does a smartmatch between its arguments. …

lt,le,ge,gt and cmp use the collation (sort) order specified by the current locale if a legacy use locale (but not use locale ':not_characters') is in effect. See 07001. Do not mix these with Unicode,only with legacy binary encodings. The standard 07002 and 07003 modules offer much more powerful solutions to collation issues.

原文地址：https://www.jb51.cc/Perl/173585.html