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Task/Echo-server/Racket/echo-server.rkt
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6
Task/Echo-server/Racket/echo-server.rkt
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#lang racket
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(define listener (tcp-listen 12321))
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(let echo-server ()
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(define-values [I O] (tcp-accept listener))
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(thread (λ() (copy-port I O) (close-output-port O)))
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(echo-server))
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