在Clojure中将比率格式化为百分比

Question

这似乎应该是显而易见的,但是如何将Clojure的比率类型转换为百分比？

(format "%3s" (/ 1 2))
;; "1/2"

(format "%3f" (/ 1 2))
;; Throws an error

Answer 1

您始终可以转换为Float:

(format "%3f" (float (/ 1 2)))

Answer 2

cl-format,源自Common Lisp format,format在某些情况下比Clojure基于Java更灵活:

(require 'clojure.pprint)
(clojure.pprint/cl-format nil "~f" (/ 1 2)) ;=> "0.5"