2016-12-07から1日間の記事一覧
練習問題4.1 左から右 (define (list-of-values exps env) (if (no-operands? exps) '() (let ((val (eval (first-operand exps) env))) (cons val (list-of-values (rest-operands exps) env))))) 右から左 (define (list-of-values exps env) (if (no-oper…