racket if for loop流程控制示例代码

代码语言:racket

所属分类:其他

代码描述:racket if for loop流程控制示例代码

代码标签: loop 流程 控制 示例

下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开

#lang racket

(if #t               ; test expression
    "this is true"   ; then expression
    "this is false") ; else expression
; => "this is true"

;; In conditionals, all non-#f values are treated as true
(member 'Groucho '(Harpo Groucho Zeppo)) ; => '(Groucho Zeppo)
(if (member 'Groucho '(Harpo Groucho Zeppo))
    'yep
    'nope)
; => 'yep

;; `cond' chains a series of tests to select a result
(cond [(> 2 2) (error "wrong!")]
      [(< 2 2) (error "wrong aga.........完整代码请登录后点击上方下载按钮下载查看

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