| 著作一覧 |
irb(main):001:0> puts <<xx + <<yy
irb(main):002:0" abcdefg
irb(main):003:0" xx
irb(main):004:0" hello
irb(main):005:0" world
irb(main):006:0" !!
irb(main):007:0" yy
abcdefg
hello
world
!!
=> nil
irb(main):008:0> def a(n); puts <<yy; end
irb(main):009:1" hello #{n} !!
irb(main):010:1" bye !!
irb(main):011:1" yy
=> nil
irb(main):012:0> a(:world)
hello world !!
bye !!
=> nil
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