如何从文本文件中读取字符串并在clojure中转换为映射?
我试图使用Clojure-Seesaw从文件中读取并将字符串转换为映射(变量),以便使用它们打印到GUI。以下是我目前的代码:如何从文本文件中读取字符串并在clojure中转换为映射?,clojure,seesaw,Clojure,Seesaw,我试图使用Clojure-Seesaw从文件中读取并将字符串转换为映射(变量),以便使用它们打印到GUI。以下是我目前的代码: (ns store.core (:gen-class) (:require [seesaw.core :as seesaw])) (defn -main [& args] (seesaw/show! (spit "amovies.txt" "") ;(spit "amovies.txt" (pr-str [{:id 1 :qty 4 :n
(ns store.core
(:gen-class)
(:require [seesaw.core :as seesaw]))
(defn -main
[& args]
(seesaw/show!
(spit "amovies.txt" "")
;(spit "amovies.txt" (pr-str [{:id 1 :qty 4 :name "movie1" :price 3.50}
; {:id 2 :qty 5 :name "movie2" :price 3.00}]) :append true)
(spit "amovies.txt" "movie: Movie_Name\nprice: 5\nid: 1\nquantity: 2" :append true)
(print (read-string (slurp "amovies.txt")))
(with-open [rdr (reade "amovies.txt")]
(doseq [line (line-seq rdr)]
(println-str line)))
我一直在琢磨如何逐行读取amovies.txt中的字符串,然后用它创建地图。所需的输出应该是
电影:电影名称
价格:5元
身份证号码:1
数量:2
但在某种程度上,如果我说,:movie,它会引用电影的名字
有人能帮忙吗?感谢您的帮助 一,
2.
我可以用这个吗
但不是用这个
文件:
传递给show的参数错误代码>
看起来你好像在向跷跷板/秀!传递大量的参数
文件说明
用法:(显示!目标)
显示框架、对话框或小部件
如果目标是一个模式对话框,调用将阻塞并显示!将
返回对话框的结果。请参阅(seesaw.core/从对话框返回)
返回其输入
我尝试过使用它,我认为reade实际上是reader,但找不到reader,并在CLI中导致错误。您使用的是什么版本的Clojure?它也应该是clojure.core/read-string,有什么错误?
(def movies-as-map
(let [lines (with-open [rdr (reade "amovies.txt")]
(line-seq rdr))]
(binding [*read-eval* false]
(map read-string lines))))
user> (def movie
(binding [*read-eval* false]
(read-string
"{:id 1 :qty 4 :name \"movie1\" :price 3.50}")))
#'user/movie
user> (keys movie)
(:id :qty :name :price)
(spit "amovies.txt"
(pr-str [{:id 1 :qty 4 :name "movie1" :price 3.50}
{:id 2 :qty 5 :name "movie2" :price 3.00}])
:append true)
(spit "amovies.txt"
"movie: Movie_Name\nprice: 5\nid: 1\nquantity: 2"
:append true)