ruby类名之间<,<=方法
摘要:有时候看源码的时候看到类名之间存在,:<,:<=]e.gmod < other → true, false, or nilReturns true ifmodis a subclass ofother. Returnsnilif there’s no relationship between the...
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posted @ 2014-09-23 17:25
posted @ 2014-09-23 17:25