class SingleSimple def initialize @log=File.open("sy.txt","a+") end @@instance=SingleSimple.new def self.instance return @@instance end def write(msg) @log.puts msg end def read msg=@log.read return msg end end singlesimple1=SingleSimple::instance singlesimple2=SingleSimple::instance puts singlesimple1 puts singlesimple2
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