class X def initialize @name = "Bob" end blah blahendputs X.new # I want this to print X:Bobputs [X.new, X.new] # I want this to print [X:Bob, X:Bob] 覆盖类的to_s方法: class X def initialize @name = "Bob" end def to_s "X:#{@name}" e
class X def initialize @name = "Bob" end blah blah end puts X.new # I want this to print X:Bob puts [X.new, X.new] # I want this to print [X:Bob, X:Bob]覆盖类的to_s方法:
class X def initialize @name = "Bob" end def to_s "X:#{@name}" end end puts X.new # prints X:Bob puts [X.new, X.new].to_s # prints [X:Bob, X:Bob]