lisp if
The traditional conditional construct in Lisp is cond. However, if is much simpler and is directly comparable to conditional constructs in other programming ... ,指令只用來測試各項目是否相等. 它不是用在指定某變數的值等於某變數或某數值的. if. (if) 是標準的 if-then-else statement. 在 AutoLISP 裡, 只能寫一項 if statement ... ,if test-form then-form [else-form] => result*. Arguments and Values: Test-form---a form. Then-form---a form. Else-form---a form. The default is nil. results---if the ... ,IF. by Kenny Ramage. Written by David Hoekstra Published on AfraLisp with kind permission. "IF I had a nickel for every COND statement that I ever wrote in lisp, ... ,Conditional control structures choose among alternatives. Emacs Lisp has five conditional forms: if , which is much the same as in other languages; when and ... ,LISP - Cond Construct - The cond construct in LISP is most commonly used to ... If the first test following cond, test1, is evaluated to be true, then the related ... ,LISP - If Construct - The if macro is followed by a test clause that evaluates to t or nil. If the test clause is evaluated to the t, then the action following the test ... ,在LISP語言中cond結構是最常用的，以允許分支。 ... if的語法：. (if (test-clause) (<action1) (action2)). 示例1. 創建一個名為main.lisp一個新的源代碼文件，並在其中 ... ,有了cond操作符，我們就相當於擁有了類c語言中的if語句。當然，cond語句比c中的if語句更強大，同時也更難用。在common Lisp中，已經有一個函數if了，它的形式 ... ,本章結束時，你會掌握足夠多的Common Lisp 知識來開始寫程式。 ... 不能用函數來實現，因爲實參在函數呼叫時永遠會被求值，而 if 的特點是，只有最後兩個實參的 ...
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 lisp if 相關參考資料
7.6. Conditionals
The traditional conditional construct in Lisp is cond. However, if is much simpler and is directly comparable to conditional constructs in other programming ... https://www.cs.cmu.edu Auto Lisp 快速上手- 008 @ 阿貴的AutoLisp程式集:: 隨意窩 ...
指令只用來測試各項目是否相等. 它不是用在指定某變數的值等於某變數或某數值的. if. (if) 是標準的 if-then-else statement. 在 AutoLISP 裡, 只能寫一項 if statement ... https://blog.xuite.net CLHS: Special Operator IF - Common Lisp HyperSpec (TM)
if test-form then-form [else-form] => result*. Arguments and Values: Test-form---a form. Then-form---a form. Else-form---a form. The default is nil. results---if the ... http://clhs.lisp.se COND vs. IF | AfraLISP
IF. by Kenny Ramage. Written by David Hoekstra Published on AfraLisp with kind permission. "IF I had a nickel for every COND statement that I ever wrote in lisp, ... https://www.afralisp.net Conditionals - GNU Emacs Lisp Reference Manual - GNU.org
Conditional control structures choose among alternatives. Emacs Lisp has five conditional forms: if , which is much the same as in other languages; when and ... https://www.gnu.org LISP - Cond Construct - Tutorialspoint
LISP - Cond Construct - The cond construct in LISP is most commonly used to ... If the first test following cond, test1, is evaluated to be true, then the related ... https://www.tutorialspoint.com LISP - If Construct - Tutorialspoint
LISP - If Construct - The if macro is followed by a test clause that evaluates to t or nil. If the test clause is evaluated to the t, then the action following the test ... https://www.tutorialspoint.com LISP - 決策- Lisp基礎教程 - 極客書
在LISP語言中cond結構是最常用的，以允許分支。 ... if的語法：. (if (test-clause) (<action1) (action2)). 示例1. 創建一個名為main.lisp一個新的源代碼文件，並在其中 ... http://tw.gitbook.net Lisp 入門第七章條件操作符- 维基教科书，自由的教学读本
有了cond操作符，我們就相當於擁有了類c語言中的if語句。當然，cond語句比c中的if語句更強大，同時也更難用。在common Lisp中，已經有一個函數if了，它的形式 ... https://zh.wikibooks.org 第二章：歡迎來到Lisp — ANSI Common Lisp 中文版
本章結束時，你會掌握足夠多的Common Lisp 知識來開始寫程式。 ... 不能用函數來實現，因爲實參在函數呼叫時永遠會被求值，而 if 的特點是，只有最後兩個實參的 ... https://acl.readthedocs.io |