TypeError:类Word的超类不匹配
irb(main):016:0>类Word irb(main):017:1>定义回文? (字符串) irb(主):018:2>string==string.revese irb(主):019:2>结束 irb(主):020:1>结束 =>无 irb(main):021:0>w=Word.new =>#<单词:0x4a8d970> irb(main):022:0>w.回文? (“foobar”) =>假 irb(main):023:0>w.回文? (“水平”) =>真 irb(main):024:0>类Word<字符串 irb(main):025:1>定义回文? irb(主):026:2>self==self.reverse irb(主):027:2>结束 irb(主):028:1>结束 TypeError:类Word的超类不匹配 来自(irb):24 来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/railies-3.2.1/lib/rails/commands/console.rb:47:in `start' 来自C:/Ruby193/lib/rube/gems/1.9.1/gems/railties-3.21/lib/rails/commands/console.rb:8:在“开始”中 来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/railies-3.2.1/lib/rails/commands.rb:41:in`<top(required)>' 来自script/rails:6:在“require”中 来自script/rails:6:在“<main>”中