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common lisp 的函数 NCONC
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语法 | |
nconc &rest lists => concatenated-list | |
参数和值 | |
list --- 除了最后一个, 其他的必须为 list, 最后一个可以是任何 object | |
concatenated-list --- 一个 list | |
描述 | |
返回一个list, 这个list 连接了所有的list | |
代码 | |
* (nconc '(A B C) '(D E F) '(G H I) 1) | |
(A B C D E F G H I . 1) | |
注: | |
这是一个破坏性的函数, 会改变 lists(如果lists 中用变量的话), 除了产生破坏性外,其他效果和 append 一样 |
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