racket 类型变量比较操作示例代码
代码语言:racket
所属分类:其他
代码描述:racket 类型变量比较操作示例代码
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#lang racket ;; for numbers use `=' (= 3 3.0) ; => #t (= 2 1) ; => #f ;; `eq?' returns #t if 2 arguments refer to the same object (in memory), ;; #f otherwise. ;; In other words, it's a simple pointer comparison. (eq? '() '()) ; => #t, since there exists only o.........完整代码请登录后点击上方下载按钮下载查看
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