Drracket:创建一个函数，它将返回一个使用冒泡排序的比较器的排序列表

(define (bubble-sort lst comparator)
  (define (swap! i j)
    (let ((temp (list-ref lst i)))
      (set! (list-ref lst i) (list-ref lst j))
      (set! (list-ref lst j) temp)))

  (define (bubble-pass)
    (let loop ((i 0))
      (if (< i (- (length lst) 1))
          (if (comparator (list-ref lst i) (list-ref lst (+ i 1)))
              (begin (swap! i (+ i 1))
                     (loop (+ i 1)))
              (loop (+ i 1))))))

  (let loop ((pass 0))
    (if (< pass (- (length lst) 1))
        (begin (bubble-pass)
               (loop (+ pass 1)))))
  lst)

; 定义一个简单的比较器，用于比较两个数
(define (compare-numbers a b)
  (if (< a b) -1
      (if (> a b) 1
          0)))

; 使用冒泡排序函数
(define sorted-list (bubble-sort '(3 1 4 1 5 9 2 6 5 3 5) compare-numbers))
(sorted-list)