为什么我运行时得到错误(使用'clojure.contrib.repl-utils)? [英] Why do I get an error when I run (use 'clojure.contrib.repl-utils)?
问题描述
我发现我可以使用Chris Houser的repl-utils库(clojure.contrib.repl-utils / source或show)通过阅读Programming Clojure book page 20来进入Java。
我在网上搜索并下载了'clojure-contrib.jar',并将其设置为classpath的一部分。
问题是我可以' t运行以下命令
(使用clojure.contrib.repl-utils)
这两个命令行可能是错误的?
解决方案
找到解决方案
我问过一些答案 。
总之, - 它有它的要求,但给我一个错误,提及。因此,我需要使用如下
user =>(require'clojure.contrib.repl-utils)
user =>(clojure.contrib.repl-utils / expression-info'(+ 1 2))
{:class java.lang.Number,:primitive? false}
I found that I can use Chris Houser's repl-utils library (clojure.contrib.repl-utils/source or show) for poking into Java by reading Programming Clojure book page 20.
I searched the web and downloaded the 'clojure-contrib.jar', and set it as a part of classpath.
The problem is I can't run the following command
(use 'clojure.contrib.repl-utils)
on both command line clojure and emacs/slime.
What might be wrong? Is Chirs Houser's library is different from 'clojure-contrib.jar'?
解决方案FOUND A SOLUTION
I asked and got some answers.
In short, - it's OK to have it require, but gives me an error to refer. As a result, I need to use as follows
user=> (require 'clojure.contrib.repl-utils) user=> (clojure.contrib.repl-utils/expression-info '(+ 1 2)) {:class java.lang.Number, :primitive? false}
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