相关疑难解决方法(0)

我试图在放弃异常之前多次执行一个函数.但是在Clojure中从catch块中重现是无效的.怎么能实现这一目标？

(loop [tries 10]
  (try
    (might-throw-exception)
    (catch Exception e
      (when (pos? tries) (recur (dec tries))))))

java.lang.UnsupportedOperationException: Cannot recur from catch/finally 

我能找到的最好的是以下笨拙的解决方案(包装在func中并调用它)

(defn do-it []
  (try
    (might-throw-exception)
    (catch Exception e nil)))

(loop [times 10]
  (when (and (nil? (do-it)) (pos? times))
    (recur (dec times))))