andreagus/plp @ afc3ae94b846d132fb65ba71a3dbfa1927b2c08d

Andrea Gus afc3ae94b8 work on oo implementation in scheme		10 年之前
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scheme1.rkt	6257baa8e1 first examples on racket	10 年之前
scheme2.rkt	3786c5236a some exercises	10 年之前
scheme3.rkt	afc3ae94b8 work on oo implementation in scheme	10 年之前